GM Service Manual Online
For 1990-2009 cars only

System

Front Brakes

Rear Brakes

Brake Assist

JM4 (RWD)

Disc 11.86 x 1.04

Drum 9.5 x 2

Hydraulic

JM4 (F4WD)

Disc 11.57 x 1.25

Drum 9.5 x 2

Hydraulic