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How To Replace Front Brakes 2001-04 GMC Sierra 2500HD
Created on: 2011-03-29
Tools used
Brought to you by 1AAuto.com your source for quality replacement parts and best service on the internet.
Hi, I'm Mike Green. I'm one of the owners at 1AAuto. I want to help you save time and money repairing or maintaining your vehicle. I'm going to use my 20+ years experience restoring and repairing cars and trucks like this to show you the correct way to install parts from 1AAuto.com. The right part installed correctly that's going to save you time and money. Thank you and enjoy the video.
In this video we're going to show you how to change the front brakes on this 2002 GMC 2500 HD, pretty much the same as any 2000-2006 and even some '07, the 2500HD as well as the 2500 both GMC as well as Chevy Silverado. Tools you'll need are: A jack and jack stands, various millimeter sockets with a ratchet, an extension, a breaker bar or metal pipe for some leverage if you don't have impact tools like I have in the video, penetrating oil, a large screwdriver or pry bar, a wire brush, two 10 m x 70 mm long standard thread bolts, anti seize lubricant, and a large C-clamp and a piece of wood.
Okay, so you'll want to remove your caps 21 mm, do this carefully. Okay, we'll fast forward a little bit and we'll use fast forward quite a bit for these monotonous parts. If you don't have air tools you'll want to loosen the lug nuts with the tire on the ground, then jack up and support with jack stands under your vehicle. We're using a 22 mm. Okay, and we'll fast forward here again as we remove the rest of the lug nuts and remove the tire from your vehicle. You can see here I go to the other side and just turn the wheel, you can also just use your steering wheel, this allows you access to the back easier. Okay, so you want to inspect your brakes and you can see the face of this rotor is nice and smooth, if you run the back side of your fingernail up and down it, it looks pretty good. Then there's, you can actually see, probably, you can see right here when you move, you can see that moving part to the rotor, just to the left of it that's your brake pad, which it looks like there is pretty good life and this right here is your other brake pad and again, it looks like pretty good life. But, if you come down here and we look up in here and look at the surface of the rotor in here one, I can see some pitting which I don't like, and then there's a pretty good groove on this here so I'm going to remove the calipers and the rotors.
To remove the calipers I'm going to start with these two bolts here, okay, this bolt and this bolt. Okay, I want to remove the bracket to remove the rotor or the disk, I'm going to move this bolt and this bolt down here. I'm just going to take a big screwdriver, put right in here, and then slowly pry out. Okay, and that does two things it resets the pistons and also loosens it up so that the caliper comes right off.
The bolts are 18 mm, so a breaker bar is your best tool and if you only have a ratchet what you can do is take a piece of pipe and put it on the end and that gives you more leverage. Then you can pull and loosen those up. I do have air tools so I'm going to use them. Pull your pins out here and you'll want to clean these up and re-grease them. My lower one is not coming out very easily. Okay, that was pretty dry so we really need to clean that up and grease it well. It's okay to use the screwdriver to pry the caliper to come off. Then you'll want to set that here. Then your pads come off easy enough. If you were just changing your pads, we just pull off like that. Now the bolts that hold this bracket on are 21 mm. So what you'll probably want to do is spray a bunch of penetrating oil on there. Another thing that will help is if you take a screwdriver and you clean as much of the scale and stuff right here, okay, after you scrape that out coat back here with the penetrate as well. And I did show doing that to one spot, what you want to do is spin the rotor around and scrape all the scale for the entire diameter of the rotar and also coat the entire circumference of the rotor.
Is some M10 metric bolts; these are 7 cm long and just thread them in these two holes. I'm going to use my impact wrench, so you're basically just going to tighten them up so you pull the rotor and it comes off. Then take your bolts back out of the rotor. We can see on this rotor there is some definite pitting issues and we're going to replace it. With the rotor off, we want to clean off the hub. I used a screwdriver to scrape some of the scale off and then a wire brush to clean up more of the rust and then we're going to use some anti seize and put it on there. You can also use some, just some motor oil or penetrate to seal it.
Okay, so here's our new rotor from 1A Auto, the exact same as the old one and it has the threaded holes so it will come apart and I put a bunch of anti seize in the inside and put it on here. Give it good tap and then I like to put a couple of lug nuts on just makes it easy to get the brakes all together. Okay, now I'm going to take the brake parts cleaner, cut a paper towel, make sure there's no grease or anything still on the rotor. If you don't have brake part cleaner, household rubbing alcohol will do the same thing. Okay, so here's our caliper brackets, okay the stainless steel slides here take the wire brush and just clean those and polish them up nice, not polish them but just clean them off.
Now, here without 21 mm bolts we're bolting the bracket back on to the backside of the steering knuckle. Do keep in mind that the bracket goes on the rotor side so we'll start these bolts. Tighten these up to 120 foot pounds. These shoes have thin shins on them so you want to put a little coat of silicone lubricant on them and then you want these wear tabs to be facing against the way the wheel is going, you basically want them facing down. So, you put this on.
Okay, so you remember our slide bolt that was dry? Take a screwdriver and kind of get any of the scale off of it. This one is borderline needing to be replaced actually. Okay, a little grease on it, make sure it's greased up well. Okay, what I've got here is a piece of wood on both pistons and then a large C-clamp and as I tighten it's going to force the pistons back into the caliper. Tighten it as much as you can and get those pistons seated as far down there as you can and your clamp goes over the wood and then your caliper will go down right over, but you need to kind of move the little boot around a little bit, and then your bolt you cleaned up and lubricated. So, the caliper still moves back and forth we want a little bit more, I'm going to put these up to 90 foot pounds.
Okay, we're going to speed it up here, as I straighten the wheels, remove those two lug nuts, a little bit of anti seize or you could just put some oil or something just to keep the wheel from seizing to the disk. And now put the wheel on start your lug nuts by hand first, then I use my 22 mm impact wrench just to tighten them up preliminarily. Okay, now with the truck on the ground I'm going to torch my lug nuts to 120 foot pounds. I'm going to use a crossing pattern and then just another key while I'm doing this, before you drive your vehicle make sure you pump your brakes a whole bunch of times until the pedal feels nice and firm. That works the cylinders or the pistons back to the set position and then just make sure your brakes hold the vehicle in gear and then do a stop from 5 mph and a stop from 10 mph before you go out and road test your vehicle.
We hope this helps you out. Brought to you by www.1AAuto.com-- your source for quality replacement parts and the best service on the internet. Please feel free to call us toll free: 1-888-844-3393. We are the company that serves you on the internet and in person.
Tools used
Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet.
Hi, I'm Mike Green. I'm one of the owners of 1A Auto. I want to help you save time and money repairing or maintaining your vehicle. I'm going to use my 20-plus years experience restoring and repairing cars and trucks like this to show you the correct way to install parts from 1AAuto.com. The right parts installed correctly: that's going to save you time and money. Thank you and enjoy the video.
In this video we are going to be showing you how to replace the rear brakes on this 2002 GMC 2500 HD, same as a Chevy as well, same as 2000 to 2007 both GMC and Chevy 2500 HDs. Tools you will need are 18 and 22mm sockets with your ratchet, and a breaker bar and pipe for more leverage. I also do show you a way to get leverage with an 18mm wrench and an additional wrench to hook to it, large regular screwdriver or small pry bar, a large hammer, small and small stubby regular screwdrivers, also a brake spoon for that part of the video would work, wire brush, bearing grease, small hammer and of course jack and jack stands.
Start out by removing your wheel. Carefully remove the plastic retainers and your center cap and then if you are working with hand tools you want to start with the vehicle on the ground, loosen the lug nuts, then raise it up and secure it, and then remove the lug nuts. I have the benefit of air tools here, so I removed the lug nuts and removed the tire.
So taking a closer look at our brakes, you can see our discs are really deteriorating here, so we are going to replace those, and you can see right in there, that pad, we had a little bit of life left and the other one looks like it's got more, but obviously we are going to replace the pads as well.
So to remove the calipers, here, what we are going to do is we are going to undo this 18mm bolt here and then the same one down here, an 18mm bolt. These are Torx screws, but this top one is very difficult to get to, so what we are going to do is we are going to take the bolts off and remove the whole caliper bracket and everything first. Before you unbolt it, what you can do is take a large screwdriver. I have a breaker bar here. Feed it right into this hole here and pry out and that forces the pistons back into the caliper. There is somewhat limited room here, so I put my 18mm wrench on there, take another wrench which gives me a little extra leverage, and if you have a breaker bar and a socket available then you can usually fit those in there as well. I am just showing you this as an alternative method. I can remove this bolt and it comes right off. The lower one is easier to get to so you can use the ratchet or breaker bar, or anything, or air tools. I will finish getting this out and you can bring the caliper up like that. I am going to fast forward here. Basically once you pull that bracket up, you just have to force the shoes down through the bracket and the biggest thing is there are little wear tabs that will get caught and you just make sure you bend those wear tabs in and the shoes will go down right through the bracket and you can pull the bracket right off.
Now, what we have here is we got our caliper. I got a big C-clamp and one of the old pads, so I am going to work this caliper with the C-clamp and push those pistons back in and I am going to wipe down these slide bolts. They look like they are in nice shape. Clean up the sticky stuff on them. Put on a little bit of new bearing grease. Make sure they're moving well.
Now I move this caliper, it's got a couple little locks to hold it on. You can either break these off or twist them off. They come off easily enough. Now I am just going to coat this with some penetrating oil. I already know my rotor is in tough shape, so I am not going to worry too much about hurting it, when I get them off. It actually came off really easily. You can hit it right back here where your caliper was and I have open space.
You saw my rotor come off really easy, but that is not always going to be the case. Sometimes your emergency brake might be adjusted so that the rotor doesn't come off very easily, so the first thing you might want to do is to have a short screwdriver, so I am talking with the rotor still on, you reach back here and you can see I am pulling that plug out. What you are going to want do is take another screwdriver or a little bit larger, but still a small screwdriver and go through the back side until you feel this wheel and then you are going to turn the wheel star down, which is bringing the screwdriver up, and that will basically loosen your emergency brake so your rotor will come off easier. So I have used some mineral spirits, and I've cleaned off my shoes for my emergency brake and I see that I got some oil on there and that probably means I've got bad axle seal, but this truck got 240,000 miles on it, so I am not that worried about it. I am going to use some anti-seize here. I'm probably never going to have to get this off again, but if I do have to get it off again now I know I can.
The new rotor from 1A Auto is in a lot better shape than the old one. It goes right on. I lightly secure with a couple of lug nuts and now I am going to take my small screwdriver, go in to the backside and tighten up the emergency brake adjuster, basically until I start feeling it give some friction to the wheel. I am going to fast forward through this. You do want to go on this side with the handle of your screwdriver up and then move it down, which moves the wheel up inside the rotor and it is kind of trial and error. Sometimes you can move it one way and you don't tighten it and then move it the other way and you do tighten it. It takes a little longer, but adjust them until you have good friction from the shoes and then make sure you replace that rubber dust plug.
Here is my bracket for my brake shoes and what I am going to do is just take these stainless steel slides with a wire brush on them and clean them all up. Get all this dirt off of them. Here are new pads from 1A Auto. You can see a little bit more life then the old pads that were on there. So we got our caliper with slide bolts cleaned and well-greased. This can be the problem with these trucks if these dry out and get dirt in them or whatever, the calipers actually seize up and your rear brakes do not even work, so if that the case you may want to replace these slide bolts, but you definitely want to get them out, clean them up and if you have to wire brush them and make sure you get a good amount of grease back on them. I've got my shoes right there. What I am going to do is take my bracket and just put a little tiny bit of that penetrating oil and that is not really going to make it slide, it is just to make it easier to get together. Put my brackets down on to the slide bolts, then into the shoes. Use a small hammer and looking at these carefully, make sure that the wear tabs go through correctly and also that your shoes are in the right spot here. It's just out there. Okay, that shoe is on. It may benefit you to take like a screwdriver or pry bar and just kind of, the shoe is getting stuck here on this slide a little bit. Push it into place and then lower it, and it looks like it could go in a little bit, push them into place a little bit and then it goes down on. You might have to shake it around a little bit before it goes in towards that bolt. Do the same down here. Get the lower bolt started and take out my lower bolt a little bit with the air wrench. I cannot really get a torque wrench down here, so I am going to just put my wrench back on here and tighten this up really good and it should be tightened to about 120 foot-pounds. We will use a torque wrench.
I am going to speed it up here as I remove those two lug nuts, then put the wheel on, hand thread my lug nuts at first, then use my air wrench just to tighten them up a little bit. Very important: you want to make sure before you test drive the vehicle you pump the brakes a bunch of times then make sure it stops from like five miles an hour and ten miles an hour before you road test.
Here again, fast forward as I have now put the vehicle on the ground and I am torquing the lug nuts to 120 foot-pounds using a crossing pattern and then I actually go around one-by-one afterwards just to check and make sure that they are all torqued, and then put your cap on and hand tighten the plastic retainers.
We hope this video helps you out. Brought to you by www.1AAuto.com, your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll-free, 888-844-3393. We're the company that's here for you on the Internet and in person.
Tools used
Hi, I’m Mike from 1A Auto. We’ve been selling auto parts for over 30 years!
Before we put our truck in the air, we're going to loosen and remove this hubcap. It actually has little plastic caps that look like lug bolts, but they just screw on to the actual lug nuts. They're 22 millimeter. I'm just going to use a 22 millimeter deep socket and a 1/2 inch ratchet. They shouldn't be on here very tight. Just knock them loose. Just like that. Once you get them loose, you can just use the socket to unscrew them. It should just come right off.
Those stay in the hubcap. They've got little threads in them. The actual lug nuts have little threads in them, and that's how they're held on. Now, we can loosen the real lug nuts. Use a large breaker bar and a 22 millimeter socket. Break these lug nuts free, while the vehicle is on the ground. Go around, get them all broken free. All right, with those all broken free, now we're going to raise and support the vehicle. This is a really heavy truck, so make sure you have some heavy duty jack and a jack stands, and it's supported securely.
We're using our two-post lift. Because our truck is extra long, we're going to use this floor stand jack and just support the back of it right under the trailer hitch. We don't actually have to lift up on the truck, just bring this up till it touches the bottom. Just right there is perfect. Lug nuts are loose. I'm just going to use the 1/2 inch ratchet and a 22 millimeter socket. Actually, they're real loose, so I will just remove them by hand.
Wheel seized to the hub, so I'm going to put a lug nut back on, on the bottom. I'll put one on the top. Just lightly. You're not threading them all the way down. This is just so, when we knock it loose, the wheel doesn't fall off. Take a dead blow and just knock it around the tire. Try to break it free. Let's spray some rust penetrant here. This is an aluminum wheel, a steel hub that's corroded to it. Spray some in the lug openings.
You can use a heat gun or a small torch like this, and very carefully heat around the edge, and get this aluminum wheel to expand a little bit, and help knock it off hub. I'm not really applying direct heat right to it. I'm just keeping it away. You don't have to get it red hot. You just want to get it hot enough so the wheel expands. That worked perfectly. These are pretty warm. Put the wheel down and out of the way.
Before we try to remove the caliper, let's take a large flat bladed screwdriver. Wedge it in here. What I'm going to do is pry outwards and that will compress the pistons inside here and loosen it up, so when I go to take the brake pads out, they'll come out easier. Just gently pry it. It's not going to go very far, but it'll go enough that you'll be able to take the brake pads out. Caliper is held to the bracket with two Torx bolts, here, that are holding the slide pins in. The top one is very difficult to get to. We're not going to remove those. We're going to remove it at the bracket bolts and pull the whole caliper off, and then separate it up here on the spring.
We'll take an 18 millimeter socket and a good sized ratchet, or a breaker bar. It's hard to have clearance in here on the ratchet. This long ratchet fits nicely. I'm going to loosen this one up. We don't want to go too far with it, because it'll get caught between the spring, so just loosen up and then take this out. Do the same for the bottom one. Pick the caliper up a little bit to help you take this bottom one up. Put that aside.
As soon as you remove this top one, the caliper is going to want to fall. Make sure you hold it, and you can use your fingers to remove the top one. Leave this right up here on the spring. All right, so we get these apart. Flip it up. Can actually slide the pad down. Then you can put your fingers in here.
You should be able to slide this up on the caliper side if they're free moving. You might have to come here and use a small flat bladed screwdriver and just pop the boots up and off the slide pins. Just be careful with them. You don't want to rip them. Then, just push these apart. Try to do it evenly. Those come apart just like that. Take the brake pads out.
While we're working on this caliper, we're going to compress the pistons back into it so our new pads will fit. We'll take an old brake pad that came out of here, just put it across the two of them. Take our large C-clamp and get it lined up. Now, we've got it lined up, and we'll just gently turn this in to compress them. You'll know you've got a good caliper if they go in nice and easy. You shouldn't have too much resistance. Some resistance, but if they don't move at all, your caliper might be seized the pistons. Then you should replace your caliper. Now it's good. Take this off. Move that up here.
It's time to get this rotor off. There might be a retainer here that was just to hold it on. That's a little factory retainer. Just spin it off. You don't really need these. They just help hold the rotor on. The parking brake assembly, or e-brake assembly, is inside of here. It may be preventing this rotor from coming off easily. You can try to knock this with a dead blow hammer or a small mallet. If that doesn't work, you'll have to go in, and we'll show you how to release the tension on the parking brake.
That should help this slide right off. I'm going to try this mallet first and see if it comes off. Just kind of knock it free. We got lucky. It came off pretty easy. Our parking brake assembly is wet with oil. That's telling me there is an axle seal leaking, but we're going to ignore that for now and continue with the brakes. We'll just clean it up.
If you needed to adjust these parking shoes to get the brake caliper off, the adjuster is here, but there's an access window on the backside that's covered with a rubber plug. You'll take a small flat bladed screwdriver and pop it out. Be a little tricky to get out. You're going to have to find just the right angle. It'll just pop right out. Then you can take a screwdriver and go in here. I see the spot. You would twist it, push it upwards like this, and that would adjust the shoes inward and give you more clearance to get the rotor on or off.
If you need to adjust them afterwards, you can spin it out to adjust the amount of drag that you have. When you're done, don't forget to put this cap back in. I'm just going to use some brake parts cleaner and clean up some of the oil in here. Again, I know it needs an axle seal, but we're not doing that today. It's not too, too, bad, so we're going to let it go.
These are old brake rotor and pads from our vehicle and our new ones from 1AAuto.com. See, it's the exact same style and design. The brake pads match the new ones. They've got shims on them, wear indicators, and same bolt pattern. Inside the drum is for the parking brake, or e-brake, as you might want to call it. These'll fit great and work great on our vehicle.
I'm just going to clean the hub. I'm going to put the rotor on backwards. This way I can clean it with brake parts cleaner. Wipe off any excess. Flip it over. Slides on nice. Use some more brake parts cleaner to clean off the oil that comes on these when they're shipped so they don't flash rust.
We're going to clean and reuse our caliper hardware. They're stainless steel. Just spray them with some brake parts cleaner. Use a wire brush. Knock off the grit and dirt, and do the same for both sides. This is ready to go back on the car. I was just looking at the dust boots, here, on the slide pins.
This one's nice and pushed out, which is good. This one is kind of weird looking, and I'm looking at it, and it has flipped itself inside out. I'm just going to gently take a small flat bladed screwdriver and pull it out, and that's the way it should look. I clean and lubricate our slide pins. Wipe them down with a rag. Take some caliper grease and apply it to them. Do the same to this one.
Take a caliper bracket and get it started. Slide these in. Take an outer pad. They're both identical—inner and outer. Not going to clean the surface yet, but I am going to put a little bit of caliper grease here on the ears. The reason why I'm not going to clean the surface yet is because the way I'm going to put these in, I'm probably going to touch the surface with my fingers, and I need to clean it again anyways.
Going to start by going this way. Slide them up into the guides, and then you can bring these down some more. Take your inside pad and do the same thing. A little bit of caliper grease on the ears. Slide it in this way. I have to actually open this up a bit. Our brake pads line up on the hardware, and this should just slide right down. We need to push those up. Those will come right down.
Our boots popped right back over the pins, which is perfect. Now, I can slide these up. Pull them apart like that. Just got to touch them. I'm going to take some brake parts cleaner and just clean them off. Got our caliper bracket bolts. Just going to take it and slide it over. Try not to hit the edges. We need to bring the pads out. Got them lined up. Going to catch the top one. Play with this a bit and get it lined up.
Now, I can get the bottom one. I'm going to torque the caliper mounting bracket bolts to 120 foot-pounds. See our caliper. It moves nice and free. Before we're done, after we put the wheel on and torque it, and put the vehicle on the ground, we'll press in our brake pedal to bring the pistons back out.
Reinstall our wheel. Start the lug nuts by hand. Just going to use my socket and ratchet. Just snug these down before I lower the vehicle and torque them. Torque the lug nuts to 120 foot-pounds in a cross pattern.
Reinstall hubcap. Take just the socket and get these threaded on. After you've finished the brakes, be sure to gently pump the pedal to bring the piston out to meet the rotor. Just pump till the pedal gets hard. That feels good.
Thanks for watching. Visit us at 1AAuto.com for quality auto parts, fast and free shipping, and the best customer service in the industry.
