Slade901 Posted May 22, 2006 Report Share Posted May 22, 2006 I would just like to share my experience on retracting the rear caliper so that I can put a new brake pads on my vehicle. The service manual suggests on using a GM special tool to rotate the rear caliper piston clock-wise. I don't have that the GM suggests but I do have a universal rear caliper piston adjuster. It's a cube type so that it can be used on different types of rear caliper pistons. I put an an extension bar and ratchet attached to that device and tried to rotate the piston (clock-wise) and it does not want to move at all and it keeps slipping. I thought that my rear caliper piston is seized. What I have done instead is put a c-clamp on the device and tightened it so that the device won't fall off and the c-clamp will provide a force pushing the piston in. I use a screw driver to rotate the device (clock-wise) and tightened the caliper at the same time so that the device won't fall off. I used the screw driver to initially rotate the device and then halfway in I no longer need the screwdriver and I just have to tighten the c-clamp and the device is rotating (pushing the piston in) along with the c-clamp as it tightens it up. Here are the pictures: http://www.geocities.com/southbeach/sands/2476/automobile/rearcaliperadjustment1.jpg http://www.geocities.com/southbeach/sands/2476/automobile/rearcaliperadjustment2.jpg http://www.geocities.com/southbeach/sands/2476/automobile/rearcaliperadjustment3.jpg Quote Link to comment Share on other sites More sharing options...
Justin Posted May 22, 2006 Report Share Posted May 22, 2006 Really good idea, at work we have a nice kit that does just about what you did, but kind of all in one. Good to see there's a way to do it with the cube. Quote Link to comment Share on other sites More sharing options...
jeremy Posted May 22, 2006 Report Share Posted May 22, 2006 http://www.w-body.com/forum/index.php/topic,27636.0.html to the Brakes/Suspension/Wheels section Quote Link to comment Share on other sites More sharing options...
GutlessSupreme Posted May 22, 2006 Report Share Posted May 22, 2006 I could never get the cube to work worth a shit, just can't get enough pressue on it to actually push it back in while rotating. I just stuck a really small block of wood between the piston and c-clamp, and the pressure from the clamp would kind of mold the wood to the face of the piston, and of course in effect turn it in. Quote Link to comment Share on other sites More sharing options...
Heza Posted May 29, 2006 Report Share Posted May 29, 2006 needlenose plyers work perfectly too Quote Link to comment Share on other sites More sharing options...
GP1138 Posted May 29, 2006 Report Share Posted May 29, 2006 The cube I bought works perfectly, just gotta keep it inline with the divots on the cylinder. Quote Link to comment Share on other sites More sharing options...
AWeb80 Posted May 31, 2006 Report Share Posted May 31, 2006 needlenose plyers work perfectly too Word yo. Quote Link to comment Share on other sites More sharing options...
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