Owners manual

TIP: BEFORE BEGINNING INSTALLATION, SPRAY ALL FITTINGS & FASTENERS WITH

PENETRATING OIL.

1) Front Drum Brake Removal

a) Raise the truck until the wheels and tires clear the floor. Support the vehicle on jack

stands and remove the tire and wheel assemblies.

b) Remove the front wheel drive locking knob and drive flange which exposes the spindle

nut. Remove both sets of spindle nuts and tabbed washers using special 2-

/16” socket.

c) Pull the hub assembly from the spindle.

d) Remove brake drum from axle. If the brake drum will not come easily, retract shoes by

inserting a narrow screwdriver through the brake adjusting slot in the backing plate.

Back off the adjuster.

2) Drain system of all brake fluid, as follows:

a) Remove master cylinder cover. Use a syringe to remove a much fluid from the master

cylinder reservoir as possible.

b) Attach hoses to front bleeder screws and place other end of hose in a container. Open

bleeder screw.

c) When fluid stops draining, disconnect the flexible hoses from the rigid brake line at the

frame and remove horseshoe clips. Use plenty of penetrating oil between the tube, the

nut and the mating fitting. We strongly recommend the use of a tube wrench, available

from any tool supply store such as Sears. Use vise grips only if necessary.

3) Remove backing plate and shoe assembly, as follows:

a) Remove entire assembly including flexible hose as a unit by removing the six screws

attaching the backing plate to the spindle flange. Save bolts & washers.

4) Remove master cylinder, as follows:

a) Disconnect clevis from brake pedal assembly under dash.

b) Disconnect the brake lines at the master cylinder and cap lines to prevent dirt

ingestion.

c) Remove the nuts that secure the master cylinder to the fire wall and lift the cylinder out

and away from the engine compartment.

BE CAREFUL NOT TO GET BRAKE FLUID ON THE PAINT. IT CAN CAUSE

SEVERE DAMAGE!

5) Installation Caliper Mount Bracket and Splash Shield

a) Slide the caliper mounting bracket over the studs on the knuckle. The brackets should

be installed so the calipers point back towards the fire wall and the side of the bracket

with the countersunk knuckle mounting holes should point out. The driver’s side caliper

will be at the two o’clock position.

b) Secure the brackets using the original fasteners and torque the nuts to 45-50 ft./lbs.

CHECK FOR CLEARANCE BETWEEN THE CALIPER AND THE KNUCKLE.

SOME KNUCKLES MAY REQUIRE MINOR GRINDING FOR PROPER

CLEARANCE.

A135-1 and A135-3 Revision 2