Mitsubishi 1989-1993 GALANT Service Manual page 1182

SERVICE BRAKES
1.
2. Remove guide pin. Lift caliper assembly and retain with
3. Remove the following parts from caliper support.
<One-shim type>
TSB Revision
Check brake pad thickness through caliper body check port.
Limit: 2.0 mm (.08 in.)
Caution
1. When the limit is exceeded, replace the pads on
both sides, and also the brake pads for the wheels
on the opposite side at the same time.
2. If there is a significant difference in the thicknesses
of the pads on the left and right sides, check the
sliding condition of the piston, lock pin and guide
pin.
wire.
Caution
Do not wipe off the special grease that is on the guide
pin or allow it to contaminate the guide pin.
(2) Pad assembly
(3) Outer shim
(4) Pad clips
(5) Inner shim
<Four-shim type>