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Replacing Rear Brake Backing Plates on Range Rover Sport Supercharged
When the rear brake backing plate starts to rot where the pins for the parking brake shoes are retained, it is important to replace this item to avoid further damage to your braking system. With our NEW Split Shell Design, watch Doug, our Land Rover Master Technician, explains the process involved in replacing the rear brake backing plates for a Range Rover Sport Supercharged, LR3 or LR4. Our money-saving
kit # PARKBRAKIT02 includes the left and right brake backing plates and connecting hardware, and parking brake shoes. What makes this rear brake backing plate kit special from the original is the new split shell two-piece design we use. With the original design, to access to replace you must disassemble part of the rear suspension, etc., which could involve damaging some components (through removal). You will avoid this with our kit at installation, since we work around those components. In this video, you will also see Doug remove and re-install the parking brake shoes and connect cable. tech support rep here at Atlantic British. In this video we're going to talk about backing plates and specifically backing plates for the 2006 to 09 Sport. Both the naturally aspirated and the supercharged. 2010 to 2013 naturally aspirated 5 liter LR3 and LR4. And you probably most people might recognize these. These backing plates sit just ahead of the and behind the rotor, your disc brake rotor, designed to keep rocks and splash and whatnot from getting all over the brakes. Again they're not water tight but they're there to serve a purpose. So what can happen is in areas that use a lot of salt on the roads or if you're on a shore area by salt water over a period of time these backing plates can deteriorate and this is a perfect example. This is off of an 06 Sport. Now not only are these there as a splash shield but they're also the support and the mounting area for the parking brakes. So it's critical that we maintain these to keep the parking brakes working properly. So I'll get you rid of that. So the issue is that when you go to change these that most of these vehicles are designed so that you can't get the backing plate off unless you pull the rear hub, which in most cases you're going to destroy the bearing and if you destroy the bearing you got to press that on and off which means taking the knuckle assembly off the back of the vehicle which means trying to get those two bolts for the upper and lower ball joint out which are usually frozen in place and it just turns it into a huge job. So what we've done to get around that is we've come up with a two-piece backing plate. You have metal brackets here that line up that you can install these without having to take the hub off and then set these in place. You'll have the three bolts that hold the plate naturally as it is as designed plus the two additional plates to hold everything together and keep it aligned. You'll end up with a good solid setup. And you can apply the parking brakes on these. So this is essentially what you would receive is the two rear backing plates both left and right hand side, the hardware needed to bolt the plates to that. Eerything else you're going to use the old hardware on. So stay tuned. We're gonna show you how to install them. All right. In addition to rotted backing plates a real known issue on this parking brake assembly is for the shoes to come apart or one of the springs to rot out and let go and you're probably going to find once you get the rotors off and you get a good look at it more than likely you're gonna need a replacement of those shoes. So just wanted to show you the kit that we've put together where we have the four parking brake shoes. You have two on each side. One on each side has the lever that it connects to the parking brake cable and then you also have your adjustment mechanism. And then essentially your replacement springs this would be the spring around the parking brake cable. We'll show you how to install that and then the upper and lower spring for the shoes. So reasonably a pretty basic setup and then of course you're gonna reuse the old adjustment knob for the bottom. In case that got damaged that's available as a separate part as well as long as well as the crossbar that goes from shoe to shoe. And generally those aren't damaged. They're usually in pretty good shape and you can reuse those. Should you need them though they are available. So to show you what happens we actually take one of our, this is one of our vehicles, this is an 06 Sport and the driver had noticed the loud grinding noise from the back and when we got into inspecting it to find what the noise or the source of the noise was it turns out our back end plates are all rotted out to the point where they've moved in, they're rubbing against the rust ridge on the outside of the rotor. You've got literally holes right through there so as a splash shield they become basically useless. And on the other side it became so weak that the front half of it actually folded in and created an opening. So this is how bad they can get and like I say we're in the New York area. You're gonna see this basically in any state that lays heavy salt in the wintertime, calcium chloride or if you live along a shore anywhere along the east or west shorelines, you're gonna have the salt air and it's going to do the same thing. So that's some pretty bad shape. So let's show you how to get those replaced. Alright so first to start this what I usually like to do is I want to compress the piston in the caliper so that I can take the caliper off easily and that we do by just inserting this onto the backside of the rotor and up against the caliper body. Not against the mount. And then we're just go to very easily and you can see it's starting to move we're just gonna bring back pressure until that seats the piston. And once you get about half way you can knock this in, get in behind that inboard pad and you feel it move it a little bit easier. And you'll feel it seek better too. And we'll just keep coming back can we get some room there. Before we start taking the caliper apart we're going to shoot a little penetrating oil in there because we have the, we're doing the right side, the pad sensor is right here so you pull off the cover for the bleeder screw. And lift that wire out of there. What we're gonna simply do is grab the 90 degree Bend on there very gently with a pair of pliers. We're just gonna work that back and forth. We're just gonna wobble that. And then start to pull as we wobble and you'll see you get a little bit more play, a little bit more play. And then we finally get it out of it. We don't want to break this because then you got to replace the sensor all the way up in it. Now there's a little brass loop that goes around the bottom of the sensor. You want to make sure you got that out of there because you don't want to lose that. That's what holds it. Now in this case it stayed in the sensor so we're good there. So now we can take the two bolts on top and bottom of the caliper. We're going to unbolt the caliper set it on top of the control arm and then we can get to the actual caliper mount which we need to move out of the way so we can get the rotor off. All right so this is a note - the bolts are a 13 millimeter head so I like to use a ratcheting box wrench but to keep that inner post from spinning so you can take the nut out that uses a 15 millimeter. You're gonna need a thin wrench. I use this style but you can if you have a an aftermarket wrench it's a little thinner than this, then the heavier Mac or the snap-on's you might be able to sneak that in there but the skinny wrenches work really well. This one in particular is a snap-on and it sneaks in there and it's able to take the torque pretty darn well. Alright so just as a note those bolts that we took out of the back of the caliper the 13 millimeter head you need a 15 millimeter opening wrench to hold these back posts. Once you got the caliper off you're good idea to check to make sure that the two posts are free that they spin they move in and out and then what we're going to now to do is take the caliper mount off and that uses a 15 millimeter 12-point. It's got a 12-point headed bolt on it. You're not going to be able to get a six-point on it. So I like using the proper size socket and then half inch drive so you get more leverage. You might have a hard time trying to get these off with a 3/8 drive. You want the extra length. You want the happiness. There we go. All right so with the caliper out of the way the next step is going to be we're going to get the rotor off. First thing we'll do is we'll spin this around until we can actually see the little neural adjuster. They'll be on opposite sides so like on the right side you'll find it on the bottom left side of vehicle you'll find it up top. You have a little opening here that you can use to get a screwdriver in and adjust it back and then normally there'll be a little plastic plug right here. In this case the plug fell out. You can just take a small straight blade screwdriver, a little penknife or something that just pops right out of there. So once you've adjusted it down and you'll be able to tell if obviously if you turn it the wrong direction it will reach a point where you can't turn the rotor so you're going to go in the opposite direction until it's fully seated and backed off and then we've got to take the locating bolt out of there. Now that's a number 45 Torx which you could probably try to remove with just a three-eighths breaker bar in a socket. But in this case I like using the little handheld impact because it knocks them loose. Especially when they've been in there for a long period of time. If you have access to one it's a tool that's been around for as long as I can remember. We used to use it a lot on motorcycles but comes in very handy on these as well. All right and now we take the rotor off. In this case you're gonna find it's locked right onto the hub so we just take that hammer. Right in the hub area. Isn't so sharp. And you'll hear when it breaks loose. All of a sudden the sound isn't so sharp. It becomes a dull thud. And we'll just work that out. So, we have the shoes exposed now we're down to the parking brake assembly. First thing we're going to do is we're gonna take these springs out now what this is is basically a fold over spring so that it's outward tension is going to hold up against the head of this pin. This pin just floats in there. So the easiest way is just to insert a screwdriver. You want to push in to compress that spring a little bit and then keep working it back and forth until that pin pops out. Okay so that's essentially what your spring looks like. They're a lot easier getting out than they are going in. So there's one, a little bit, do the same with this - push in and twist. We'll push those pins in a little bit. Get them out of the way. It's essentially the retainer pin and we'll probably want to replace that. If they're really badly corroded you're going to take alot of this out anyway. Might as well replace it, get some new springs in there. Then what you have at the bottom is the adjuster knurled this is what we turned to be able to compress the shoes to make room so we could get the rotor off. So now we'll just take the same screwdriver and spread the shoes. Okay so that's your, and that's your adjuster and you can see you got slots on both sides. That's where the shoe actually seats in. Then we remove the bottom spring. Just grab a pair of pliers. Pull the spring out of there. If you pull a spring out and the feels really crusty and crunches when you twist it back and forth it's a good chance, might as well replace that as well we have kits available where you can get all the retainer springs. So at this point what we're going to try to do then is we're going to spread the bottom of these shoes out wider than the hub and then turn them to the side and we should be able to remove that out of there. You'll see on the backside there's the end of your parking brake cable. This is the cable that's going to run into your electronic parking brake module which is up over the rear axle. Now this essentially has a little lock out on it so what we're going to do is we can push in and then we can flip that down so that we can sneak the cable out of there. Let's give it a little persuasion with a pair of pliers. And the spring hooks on that. So essentially there's your shoes. This is all gonna come off one assembly. So now we got the parking brakes, the shoes out of the way the parking brake assembly, we'll sneaked in here. We want to get our spreader out of the way. And again you can see springs kind of in rough shape. Yeah we definitely would want to put a new kit in this before we put it back together. So then we have the cable to deal with and the spring hooks into the backing plate here which we can remove with that. When we take the cable off this cable will just sneak right down through the middle. On the backside of this there is a large plastic nut that holds the cable in place. Normally you can take the same pair of pliers. They usually don't prefer to put a wrench on it because half the time the wrench just rounds it out. So in this case we're gonna just work it back and forth. This one's a little tight. The thing we're gonna do is we'll put a little penetrating oil on this. Let it sit for about 10 or 15 minutes and then we'll get back to it. All right. Just so you can get a visual on this here's the end of the parking brake cable and this is basically the retainer nut that you're going to take off. This is plastic so you want to be a little careful and work it slowly. You don't want to break it if you break the plastic now you got to replace the cable. So just quickly before we show you the installation of the backing plates. What you'll see here is you'll notice the old backing plate is gone. To remove it is relatively simple. There is one, two and three bolts that hold that backing plate to the knuckle assembly and they have a 30, a number 30 Torx drive head on them. The top one very easy to get at. The two you'll notice they're actually behind the hub but if you get an extended driver you can actually put it right through the one hole in the hub and it lines right up with a bolt so you can take the bolt out. And they come out relatively easy give it a little tap if they're a little snug and they'll come right out. And then essentially you're gonna cut the old backing plate. Being it's rotted most times you can just break them out of there but if they're still solid piece left you can take a torch, cut off saw, hacksaw, whatever you have available and you're going to basically just cut that in two pieces so you can take it out. Now I will show you how the replacement goes in. Again we have our three bolts in hand. These are the three that we took out to take the old one out. You'll notice that here's your entry area for your parking brake cable. That kind of gives you a sort of an orientation point. When this closed up behind there. just kind of wiggle around a little bit until you get some openings and that goes up in place there. And the short piece up top. And what we're gonna do is we're gonna put the three bolts back in and you wanna make sure you get this set up - and one tab goes over the top. Then what we're going to do is we're going to put the three bolts in but we're gonna leave them a little bit loose and then we'll give us just a little bit of movement so that the bolts for the two retainer tabs that we added to these backing plates we're gonna line up well enough so you can put a bolt through and tighten that down. So we're gonna get that installed. Okay, so, just as described - we ran the three bolts in, we've installed the two small retainer bolts that go through the tabs, we've got the the locking style nuts on the backside so they won't back off and as you can see you got a good solid setup here. Now don't be concerned you have a gap here and that was from the cutting tool that basically separates these two. This is not a waterproof system, neither is the original okay. There are no seals or gaskets on this. The rotor just simply rides around a little baffle and literally when you're driving in the rain it gets all wet anyway so don't be concerned with this. This isn't going to mean a thing. So now we just need to install the parking brake cable and the park brake system and we're ready to put the back brakes on and we're basically got the worst part of it over and done with which is the installation of the backing plate. Alright so the next step is gonna be, we're gonna install the spring. We've got the cable slid through and the plastic nut on the back installed on there. I don't really need to show you how to do that. The spring itself you can see the last coil on the spring is slightly raised which is going to make it a little easy to install. The area that you're gonna install this on when you slide this over has a slight lip right on the edge of this open area here and we're gonna do is just you can take your thumbnail or a small straight bite screwdriver and just slide that first ring over the top and then just essentially spin the spring and it'll thread itself on. You just run it in there until you got about three or four of those coils mounted on that and that's pretty good. And then from this point we're ready to put the shoes on. What I wanted to do is just give you an idea orientation of the shoes when you go to install them. In the case of the lefthand side of course the cable comes in the bottom. The cable gets hooked to this arm. Essentially all it does is that, the end of the cable is inserted through here. There's a little sliding notch on the end there so that once you install the cable the end of that knob at the end of the cable itself passes through the knotch, pull it and it pulls this up and it's going to lock it in place and then of course you have that one little segment of that spring we just installed. It's going to loop around that hold that in place. So the arm goes on the backside of the shoe. Your larger spring is going to run across the top. Your adjustment bolt right there is going to face you and then for the orientation of the crossbar because you have a round hub here in the center, this hump in the crossbar obviously is going to face up and you have a double notch on one side. This will be on the side of the arm. So that this basically slides in like so and then this side with the spring sits in this notch right here. And that we're gonna do once we get the shoes over the hub, but I wanted to give you an idea of how you're gonna preassemble this before you go to put it together. Normally what you'll do at this point is we'll have the spring out. We're gonna hook the this shoe to the cable, then we hit the spring and then the other shoe we just take the whole thing and back right around the hub and install it. All right so just quickly before I go any further we've got the arm, the parking brake arm in place, I wanted to show you the orientation of the spring that basically comes up from underneath and you'll see that it makes a little 90-degree bend on the end and that sits right in a little notch that's cut in that retainer fork right behind the end of the cable. So just so you get an idea how that's supposed to sit when you're done. Alright so I've got the shoe in place. Basically all we did was just take the two shoes and spread them and put them right up over the, over the hub so and again look at your spring orientation. You see the crossbar or the cross piece here on the spring is down underneath this block. You don't want it rubbing up against the block. That's proper way for it to sit. So what I'm going to do now is I'm just going to sit this one shoe - I'm going to put the pin through and put the spring in and I would probably suggest as if this is your first time doing this wear safety glasses because these do have a tendency to pop off several times until you sort of get the knack on how to install them. So the pin goes in through the backing plate, goes through this slotted hole right here. There we go. All right. So this is the fun part. This is actually where a third pair of hands we definitely come in handy because you can't really compress the spring with your hands. It's just too much tension there. Alright at this point now what we've got there you got your crossbar. Now remember their orientation - the loop is basically going to be in conjunction with the hump of the hub. You want to probably do this with safety glasses. Generally I don't have a problem with these springs but now and then one may pop off and this is as I said. So let's do it this way. We're gonna slide this in here first. So that locks in. Let's put the spring back on there. And we need to lift that crossbar so it falls into that slot in the shoe. Okay here I heard everything snap into place and we're gonna line up with that hole in the back for the lockdown pin. Now the spring wants to pull the shoe away from the backing plate so we'll just install a, put a big screwdriver right here. Lock it, lock it it. That will sort of hold that from springing out while we're getting the rest of our parts. We're going to slide our pin in and that's going to go through this slotted hole right here. You want to set this up so that we've got this shoe as tight as possible up against the backing plate. There we go. Get the spring in underneath. You get some room and what you do is you put your fingers in the back and you're going to lift that, that pin so then as we compress the spring drop the pin in there to hold that and seat the head of the pin in the spring. Okay so now we got a crossbar in, we got our spring in place, now we're gonna do now at this point is install the bottom spring and the adjuster. Alright I showed you how to lock the springs in. We got the top spring in, the two clips. What we need to do now is we're going to spread the bottom. We're gonna install the small spring and the adjuster. Now just to give you a breakdown you've got one barrel on one side has the notch that's going to sit into the tab at the bottom of the shoe. The other side has the same thing. But I should be able to turn this piece here in here. So obviously this one is locked up so I'm gonna have a hard time adjusting it. So we're gonna soak this, we're going to clean it up, soak it down with penetrating oil. If yours is damaged or locked up to the point you can't turn it, again these parts are also available separately from the kit but they are available. So we're gonna free this up first before we install it. Alright so we're going to install the lower spring and see the two holes on each side on the bottom. Hold that up in there. Put this screwdriver, small pry bar, whatever you want to use, and we're gonna go up against the bottom of the shoe and we'll spread that out some so that we can install the adjuster and it doesn't matter which side you put this adjuster on. So you want to get that slot up in there, and then there and then we'll just turn this until it lines up and drops in. Just to double check. Okay and we're in. Just wanted before I put the rotor back on I want to show you a finished product of how the how these parking brake shoes should look when they're done. With your spring in place it's not over the front of this block its underneath. Crossbar. Spring is in place. The pins and then of course your adjuster and your retainer spring on the bottom. So adjusters should be all the way in so that the shoes are close together. I've got the shoes fairly well centered so now at this point we can put the rotor, on the retainer bolt and then do the adjustment on the parking brake. All right so we're gonna spin the rotor around so that your inspection hole lines up with the adjusting knob that we installed earlier, sits at the bottom of the shoes on this, and we're gonna turn this until it locks the rotor right up. Until we can't turn it and this just spins and you'll feel it start to tension up and you want to really give it, you really want to lock it in there. Take the same screwdriver and then we're gonna put it here. You can see we can't turn the wheel. So then we're now going to go back - now you can do this one of two ways. You can take a small little bit of chalk or some little paint or whatever and you can mark that knurl, that knob that we're spinning, and you're gonna go one full turn or what we'll do is we back it down 8th clicks. One. two. Three. Four. Five. Six. Seven. Eight. Which is the equivalent of one full turn. So we should be able to spin the rotor. You're gonna hear a very slight drag and then the other step to this is we're gonna line up with that little adjustment bolt that we talked about earlier. We can see that right in there and it's going to be a number five allen head. We're gonna install. We're gonna loosen that nut a little bit and they tell you just basically just tap on the rotor - it centers everything up. We'll lock it back down and then our adjustment will be done. So we've done our adjustment and then last but not least don't forget your little inspection plug. That just keeps the excess and like I said earlier this is not a waterproof system. This little plug isn't gonna keep all the water and dirt out but it is there just to keep out major debris. So now we have our shoes installed, the rotor is on. Now is just a matter of get our brakes back together and we're ready to go. All right so at this point we're gonna put the brakes on and you may or may not be replacing your brakes when you take it apart so what we're gonna do is we're actually going to replace the rear brakes on this while we have this going. So first thing you want to do before you put your caliper mount back on make sure that the pins that you support the caliper bolt to you want to make sure those are nice and free and that they move in and out. The pads do come with the zinc sliders so we've got those popped in place. Now the pads I'll do a quick explanation. You're going to find that two pads have this paper backing, two pads do not. Normally we've always found that this one which has sort of an adhesive on it is going to be on the outside resting up against the two flat areas of the caliper. So just so you know when you pull it apart you know which pad to put. So without the adhesive on the inside, with the adhesive pad you're gonna peel that off before you install the caliper itself and that one gets run on the outside. So I'm just going to set this down in, run the two bolts in the back. Alright and last but not least we have the caliper itself. Now remember when we first pulled it out we had completely collapsed the piston so now we should be able to just install this over the the new pads and in the course of the doing the rather repairs and whatnot it may work its way out just a little bit so you can always squeeze that back in with a large pair of pliers. So here we have the outer pad with the paper removed so we have the sticky adhesive and it's not even really a strong adhesive and they just put it there to try to help eliminate squealing. So we'll slide our caliper over. We'll have to push our back pins in. I usually start with the top one because that's the easiest to get at and once you get that started it'll sort of line you up for the bottom one. And there'll be a little spring tension on. Pop that in. And you may need to wiggle it around a little bit to get the bolt seated in the threads. Give a few turns. Okay we're in place so all we need now is just our two wrenches and tighten those two bolts up. Alright so you've seen how to assemble the backing plates the parking brakes we've done the parking brake adjustment. We've got our pads in place, calipers back in place. All we need at this point is we put our wheel back on, take the vehicle for a drive. We'll get the brakes worn in just a little bit. But for the most part that's how you're gonna do an assembly and replace those rotted old backing plates. So when you're ready to do so just contact any of our knowledgeable salesmen at 1-800-533-2210 And thanks for watching.
Applies To These Models:
LR3 / Discovery 3 V8 4.4L | '05-'09
LR3 / Discovery 3 V6 4.0L | '05-'09
LR4 / Discovery 4 V8 5.0 Liter | '10-'13
Range Rover Sport | '06-'09
Range Rover Sport Supercharged | '06-'09
Range Rover Sport | '10-'13
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