How do i change the back brakes on my 2005 Chevrolet Silverado
Set blocks around front tires for one. Jack up the rear and set axel on stands.
Pull tire as normal. There will be "star" washers on two of the lug bolts. Gently pry these up and set aside. You'll have to release the pressure on the slave cylinders within the drum. For this I get some 1/4" clear rubber tubing and press one end over the zirc/bleeder fitting. Then loop it up and back down into a clear bottle. Gently crack open the bleeder. Some fluid should come out a start to rise up the tube. Now Gently tap the backside of the drum towards you with a hammer. Just enough to unseat it a bit so that you can wiggle it some what. Once you can wiggle it press the drum forward and back. This helps presses the shoes back against the slave cylinder, thus compressing the piston in the slave cylinder. You should notice the fluid flowing up the tube and the drum getting a bit looser. When the shoes have been pressed in enough, the drum should easily rock off the lugs and come off in your hands. Press the shoes together a bit more, then retighten the bleeder valve being carefull not to dislodge the tube.
At the tope you will see a spring that ties the adjustment nut to the forward shoe. Using a pair of good pliers or thin nosed vice grips on the forward end of the spring. Pull the spring forward then out and set aside. The adjustment screw can then be lilfted out as well as the stop thats connected to it.. Set those aside. There is now a heavy duty spring clip that holds the two shoes in at the bottom. It's held in place by pressure only. Lift one side of the spring clip off of a shoe then twist out that shoe. The spring clip should be able to rock towards the now vacant shoe and you'll easily be able to remove the other shoe. Be careful to not disturb the rubber boots on the slave cylinder to prevent dust from entering. Now you can either brush out/ blow out the accumulated dust or use some brake cleaner to clean up the intererior of the brake cylinder and drum. Now reverse the process for putting the new shoes in. The spring clip in the bottom may pop out on you, but it only just rests in a saddle. You'll likely have to twist it a bit to start getting the first shoe on, then the same for the second. The adjuster slips in place between the shoes as does the stop. This is all held in place by the last spring. This part tends to be a pain as things want to shift with the tension. Take your time and keep an eye on the slave cylinder as this is the time your likey to slide the plunger out and get fluid every where. Once the spring is set, center the shoes as best you can by pushing them either forward or back. The drum should be fairly easy to slide over the shoes and back in place. If not, crack the bleeder again and press the shoes together to make more room. Once the drum is on , replace the star washers and close the bleeder valve. Carefully remove the hose from the bleeder and continue to the other drum. When you're done, add fluid to the MC to the full level. Start the motor and depress the brake peddal a couple of times. If it goes to the floor more than once you either forgot to close a bleeder or one of the adjusters slipped in a drum and you'll have to pull it apart to reseat it all and clean up the fluid, You'll know which one as you'll see it dripping. If the peddal is firm afer the second pump or so then shut off the motor and remount your tires.
Sep 12, 2010 |
2005 Chevrolet Silverado