Rear
Disc Brake
Disc
brakes generally appear on Turbo model EA82. The caliper is the
same between 2wd and 4wd models. There are 2 bolts that hold
the caliper to the bracket, There is a bolt with a torx head,
leave that in. remove the 14mm bolt on the bottom, and rotate
the caliper up and out of the way of the rotor, and slide off
the top pin. The piston can be seated in its bore with either
a C-clamp or a large pair of pliers.
The caliper
bracket bolts to the backing plate. Backing plates are 2wd and
4wd specific, but the caliper bracket and backing plate are of
the same dimensions.
caliper bracket from the back of the backing plate. Remove
the caliper bracket, pads in or out.
(2wd)
The Hub
on a 2wd is different than a 4wd, but the rotor that bolts up
to the hub is the same. Remove the bolt and the spacer that contains
the bearing, remove the bearing. Remove the rotor. There will
be a bearing and spacer on the back side of the hub.
The
cotter pin and axle nut will have been removed first, using a
36mm socket. Slide the rotor away from the splined axle shaft.
The hub
can be unbolted from the rotor with a 14mm socket if the rotor
needs turned or replaced.
The
backing plate is held onto the rear trailing arm by 3 14mm bolts.
The front two bolts thread into the trailing arm. The bolt towards
the back threads into a 14mm nut. The backing plate may be seized
to the trailing arm. If so, rotate and wiggle until it is free.
You may have to take a wire brush and clean up the rust.
The 2wd
backing plate differs from the 4wd backing plate as the hole
in the center is smaller. A 4wd backing plate will bolt onto
a 2wd trailing arm, but a 2wd will not fit on a 4wd without modification
Ultimate Subaru