91LuminaEuro Posted March 1, 2009 Report Share Posted March 1, 2009 So, a few weeks ago, i started noticing that from the pass rear brakes there was this loud grinding noise and it gradualy got louder. I didn't have time to check it out but the car seemed to stop ok and i knew i would be home for spring break this week, so i just babied my car until today when i got home to check things out. Here is what i found....(mind you my brakes were about 1 year old) Apparently the slider portion of the caliper stopped working, which wouldn't let the caliper expand.....the inside pad was perfectly fine... prolly 80% and the other side of the car both were 80% but the outside pad on the passengers side is as you can see..at about -75% lol The pad actually wore down into the rotor a like 1/16th inch...kinda scary..luckily the guys at the local CarQuest are awesome and replaced all the parts for free because they were so new and i had just replaced everything not that long ago... Quote Link to comment Share on other sites More sharing options...
birdman Posted March 1, 2009 Report Share Posted March 1, 2009 make sure when you get new calipers you get the revised ones that have stainless slider pins. or just swap the newer style brakes on there. Quote Link to comment Share on other sites More sharing options...
BXX Posted March 1, 2009 Report Share Posted March 1, 2009 make sure when you get new calipers you get the revised ones that have stainless slider pins. or just swap the newer style brakes on there. They suck just as bad.... The sliders dont sieze 100% like the earlier ones, but they stick hard.. Main cause of poor braking and a tab spongy brake pedal. I can wait to get the Gen 2 knuckles and upgrade Quote Link to comment Share on other sites More sharing options...
White93z34 Posted March 1, 2009 Report Share Posted March 1, 2009 the 94-96 ones might not be the greatest but they are a massive upgrade from those piles of hell. Quote Link to comment Share on other sites More sharing options...
Andrew Posted March 1, 2009 Report Share Posted March 1, 2009 just grease the hell out of those sliders to avoid this. Quote Link to comment Share on other sites More sharing options...
91LuminaEuro Posted March 1, 2009 Author Report Share Posted March 1, 2009 I already replaced the everything. I'm fairly certain the old calipers were the "revised ones" However, im no 100% certain, and i greased the sliders when i put those ones on last year. However i know this time they were the revised ones, and i greased them again. I considered the brake upgrade, however im not planning on keeping the car for more than another 6 months, so it was easier to just replace this stuff for free now, than dump any more money into the car than necessary. Quote Link to comment Share on other sites More sharing options...
rockfangd Posted March 1, 2009 Report Share Posted March 1, 2009 my rear brakes suck when they start to not work properly, like one time i set my parking brake and when i released it i burned up my right rear rotor and pads Quote Link to comment Share on other sites More sharing options...
dodgethis Posted March 1, 2009 Report Share Posted March 1, 2009 Where are the sliders? I didn't grease them when I did brakes. I probably will grease them the next time when I do brakes. Probally just F*'d myself for doing that. Quote Link to comment Share on other sites More sharing options...
19Cutlass94 Posted March 1, 2009 Report Share Posted March 1, 2009 For being a yr old those brakes are pretty shitty. Those sliders need a shitload of grease on them for the caliper to work properly and for this not to happen. You need to put on as much grease as you can. On the front calipers, the sliders are part of the caliper bolt. Quote Link to comment Share on other sites More sharing options...
dodgethis Posted March 2, 2009 Report Share Posted March 2, 2009 On the front calipers, the sliders are part of the caliper bolt. So your saying that as long as your grease your caliper bolts, your taking care of on the sliders ? Quote Link to comment Share on other sites More sharing options...
GnatGoSplat Posted March 2, 2009 Report Share Posted March 2, 2009 Heh, I've seen the exact same thing happen on the 88-93 brakes dozens of times. Never had any problem with the 94-up style. I love newer style GM calipers with the easy 1-bolt removal that flip-up and the pad stays on the bracket. As much crap as GM gets for poor design, the flip-up calipers are awesome. Quote Link to comment Share on other sites More sharing options...
Crazy K Posted March 2, 2009 Report Share Posted March 2, 2009 Heh, I've seen the exact same thing happen on the 88-93 brakes dozens of times. Never had any problem with the 94-up style. I love newer style GM calipers with the easy 1-bolt removal that flip-up and the pad stays on the bracket. As much crap as GM gets for poor design, the flip-up calipers are awesome. x2 another issue that affects the 88-93 calipers, is that the slider boots are easily damaged, cause when you install them you can accidentally pierce the rubber on them by bumping the caliper on the spindle. to avoid this you have to push the slider towards the center of teh car. Quote Link to comment Share on other sites More sharing options...
Hairdo12 Posted March 2, 2009 Report Share Posted March 2, 2009 The slider pins could be made out of magic alien metal and they will still seize up; even if you lubed them with a gallon of grease. The bores are still cast iron and once the lip the boot seals agains starts to rust its only a matter of time (very little time). I put new rear brakes on every April for seven years, I currently have had the 94+ for 18 months... a personal record with this car. Just curious... after about 5 miles of driving did you hear any thumping from your rear brakes? Quote Link to comment Share on other sites More sharing options...
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