Rear axle bearing or caliper obstruction?
#1
Rear axle bearing or caliper obstruction?
95z last 60 of 160000 miles I thought left axle bearings going bad due to rear end noise, left rear caliper dragging and locking up when tire tread gets worn, and brake pad wearing excessively one side of the rotor. Friend told me it was just caliper obstruction replace caliper never heard of that anyone had any experiences with this. All replies appreciated thanks. 4thknd95z28lt1
#2
Excessive wear on one pad is usually the results of sticking sliders on the caliper assembly. The sliders allow the pads to float and so that each pad gets the same amount of pressure when the brakes are applied. Usually the rubber boots around the sliders tear allowing water to get in and rust things up. Unscrew the sliders from the caliper mounting bracket, clean the sliders and the holes in the bracket, replace the rubber boots, and coat the sliders with waterproof synthetic grease & see what happens.
#3
Thanks pete that would be alot better than buying a not needed new caliper and replacing bearings. I was thinking if it was wheelbearings it would have gotten worse or went out after 60,000 miles of neglect. let you know if it works.
#6
What Pete said applies to the caliper if the outer pad is the one wearing too quick. If the caliper piston is what is sticking then you get the inside pad worn faster than the outside one. Also if the pad are not even from end to end or top to bottom that is also a sign of sticking pistons or pins. Evaluate the entire situation before ruling out anything.
Massey
Massey
#7
I just took off caliper the bottom slider was dry some rust in hole and the outer pad is worn. It's on a 95z I wanted to use rotor off rear of 94z it looks little different I think because maybe been replaced r they same? All I have is silicone diaelectric grease? All this time only had a clue thanks u guys.
#8
94 and 95 should be the same rotor unless some one has swapped the brakes of one of the cars with the rotors and calipers of a 98+ car.
Compare them side by side, make sure that the diameter is the same, as with the parking brake surface and the height as well.
Dielectric grease will not help you. You need brake caliper grease, it is designed not to break down under the heat and stress that comes with the brake system. If the pin is rusty you can assume the hole is too and that usually spells trouble. Best to replace the pins and clean the hole out really good. If the boots around the pins are bad replace them as well. If you dont know what the parts you need are called them take samples of what you took off the car and want replaced to the local auto part store of your choice. My personal preferance is Advance Auto or O'reilly Auto.
Massey
Compare them side by side, make sure that the diameter is the same, as with the parking brake surface and the height as well.
Dielectric grease will not help you. You need brake caliper grease, it is designed not to break down under the heat and stress that comes with the brake system. If the pin is rusty you can assume the hole is too and that usually spells trouble. Best to replace the pins and clean the hole out really good. If the boots around the pins are bad replace them as well. If you dont know what the parts you need are called them take samples of what you took off the car and want replaced to the local auto part store of your choice. My personal preferance is Advance Auto or O'reilly Auto.
Massey
#9
I was about to put some lithium grease on it. The pin that had grease on it is worn and pitted the one looked dry looks better than it. The 94 donor pin has little wear no pits the boots on all arent cracked. How good do they have to be they aren't really rusted just grey where the worn places are? Just kinda broke now