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On the back side "backing plate" behind drum, there's a small opening in the bottom (sometimes they have a black rubber oval plug) remove plug (if equipped) insert straight blade screw driver and try turning adjuster
Using a C clamp depress the claiper. There a spot right in the middle to do this. Now the fun part hope you have metic hex key set. The 2 caliper guide pins are on the back inside the boots. Which need to be in great condition. Using the metic hex keys some are 7mm or 8mm turn to your right to remove. Rmove the caliper mounting bracket bolts. Fun part #2 removing the disc rotor. Theres parking brake pads or a durm brake system on the inside of the rotor. If the rotor does not slide off. You must remove the rubber gromet on the back of the backing plate. Using a screwdriver or the old brake adjuster tool turn the star wheel to adjust the parking brake in to remove the disc rotor. All brake guides on the calipers & guide pins need to have high temperture brake grease applyed to them. Buy the big bottle for $10 for the front brakes & future use it comes with a bush. Note ** Remove a guide pin take to auto store buy socket to reinstall guide pin/bolt. Why Caliper guide pins 26lbs torque. Caliper mounting bolts 125lb torque
Disc only!!! Remove rear tire. Remove 2 calipar bolts. Hang calipar. Don't leave hang loose. Slide rotor off. If stuck you must adjust the emer. brake, Going around the back side of the backing plate on the bottom. Remove the rubber boot. Using a brake tool or screwdriver adjust the star wheel adjuster to remove the rotor.
REMOVAL & INSTALLATION If
you are not thoroughly familiar with the procedures involved in brake
replacement, only disassemble and assemble one side at a time, leaving
the other wheel intact as a reference. 1983-88 Vehicles See Figures 1, 2 and 3
Raise and safely support the rear of the vehicle with jackstands.
Remove the tire and wheel assembly.
Remove the brake drum, as outlined earlier in this section.
Place Brake Cylinder Clamp D81L-1103-B or equivalent, over the ends of the brake cylinder.
CAUTIONBe careful that the springs do not slip off the tool during removal, as they could cause personal injury.
the shoe-to-anchor springs, using Brake Shoe R and R Spring BT-11, or
equivalent, then unhook the cable eye from the anchor pin.
1: Place the brake clamp tool over the ends of the wheel cylinder, then
remove the shoe-to-anchor springs using the correct tool
Remove the shoe guide (anchor pin) plate.
Remove the shoe hold-down springs, shoes, adjusting screws, pivot nut, socket and automatic adjustment parts.
Remove the parking brake link, spring and retainer. Disconnect the parking brake cable from the parking brake lever.
removing the secondary brake shoe, disassembly the parking brake lever
from the shoe by removing the retaining clip and spring washer.
Fig. 2: View of the drum brake components-1983-88 9-inch brake shownFig. 3: View of the drum brake components-1983-88 10-inch brake shownTo install:
brake cable must be connected to the secondary brake shoe before the
shoe is installed on the backing plate. To do this, first transfer the
parking brake lever from the old secondary shoe to the new one. This is
accomplished by spreading the bottom of the horseshoe clip and
disengaging the lever. Position the lever on the new secondary shoe and
install the spring washer and the horseshoe clip. Close the bottom of
the clip after installing it. Grasp the metal tip of the parking brake
cable with a pair of pliers. Position a pair of side cutter pliers on
the end of the cable coil spring, and using the plier as a fulcrum,
pull the coil spring back with the side cutters. Position the cable in
the parking brake lever.
Apply a light coating of high
temperature grease to the brake shoe contact points on the backing
plate. Position the primary brake shoe on the front of the backing
plate and install the hold-down spring and washer over the mounting
pin. Install the secondary shoe on the rear of the backing plate.
Install the parking brake link between the notch in the primary brake shoe and the notch in the parking brake lever.
Install the automatic adjuster cable loop end on the anchor pin. Make sure the crimped side of the loop faces the backing plate.
the return spring in the primary brake shoe and, using the tapered end
of the brake spring service tool, slide the top of the spring onto the
CAUTIONBe careful to make sure that the spring does not slip off the tool during installation, as it could cause injury.
the automatic adjuster cable guide in the secondary brake shoe, making
sure the flared hole in the cable guide is inside the hole in the brake
shoe. Fit the cable into the groove in the top of the cable guide.
the secondary shoe return spring through the hole in the cable guide
and the brake shoe. Using the brake spring tool, slide the top of the
spring onto the anchor pin.
Clean the threads on the adjusting
screw and apply a light coating of high temperature grease to the
threads. Screw the adjuster closed, then open it 1/2 turn.
the adjusting screw between the brake shoes with the star wheel nearest
to the secondary shoe. Make sure the star wheel is in a position that
is accessible from the adjusting slot in the backing plate.
Install the short hooked end of the automatic adjuster spring in the proper hole in the primary brake shoe.
the hooked end of the automatic adjuster cable and the free end of the
automatic adjuster spring in the slot in the top of the automatic
Pull the automatic adjuster lever (the lever
will pull the cable and spring with it) downward and to the left and
engage the pivot hook of the lever in the hole in the secondary brake
Check the entire brake assembly to make sure that
everything is installed properly. Make sure that the shoes engage the
wheel cylinder properly and are flush on the anchor pin. Make sure that
the automatic adjuster cable is flush on the anchor pin and in the slot
on the back of the cable guide. Make sure that the adjusting lever
rests on the adjusting screw star wheel. Pull upward on the adjusting
cable until the adjusting lever is free of the star wheel, then release
the cable. The adjusting lever should snap back into place on the
adjusting screw star wheel and turn the wheel one tooth.
Expand the brake adjusting screw until the brake drum will just fit over the brake shoes.
Install the brake drum and wheel and tire assembly, then adjust the brakes.