Uneven brake pad wear question

B

Blake

Guest
This may sound like a silly question but bare with me. I replaced my front pads this morning and cleaned everything up and used high temp lube on everything. Here's why. The squeelers were just about to make contact. I had them at the bottom. The top end of the inside pad was almost twice as thick as the bottom of the inside pad. The outside pad(floater)had even wear across the surface. The caliper bolts were tight. Any ideas what could cause this? This is the first time I've ever seen this truck do it.
Thanks!
Blake
 
4C FED

4C FED

Absolutum Dominium
Not much there to go bad.
I would replace the calipers and the 2 bolts that the caliper slides on.
They're dirt cheap @ Autozone. In fact the the entire caliper is cheaper than the rebuild kit. Something like $18.

HTH
 
SYO237

SYO237

SyTy Registry
replace your guide bolts. those are those 2 bolts with the hex head that hold the caliper onto the spindle. they may look straight, but believe it or not, they do get "worn" and dont do the job of keeping an equal distribution of pressure across the caliper to compress the pad.

like mentioned, get in the zone. get guide bolts. few dollars. then get the hell out of the zone.


a bad piston in the caliper can also cause this....

never bothered to look up the cost of a caliper at the zone... i'll check it out tomorrow.
 
hvychy

hvychy

New member
13 bucks for a caliper with a lifetime garr. cant beat that. get the z rated pads also lifetime. hth
 
S

stariy

New member
There are robber gourmets for guide bolts, which come with pads if you buy them from dealer. I asked techs they told me that it is necessary to have them replace every time pads replaced. But after market never bother to put them in.
:lol:
 
syclonekid43

syclonekid43

New member
brakes

brakes

try changing the flexible hoses that go to the calipers if they are screwed up it woulnt let all the pressure out of the caliper when you take your foot off the brake i never noticed that happen on my sy but i know alot of gm cars and trucke are know for doin that especialy the olds aleros one of the pads get worn down and the other looks like brand new
 
Hu Ryde

Hu Ryde

Donating Member
George, is this the same brake side that the caliper flipped up locking the wheel or other side?
 
B

Blake

Guest
After the incident with the caliper flipping up, I replaced both calipers and both sets of brakepads with rebuilt Autozone units. Felt fine using them. I was checking a pop noise and pulled the wheel and noticed the problem. At the top, the pads had plenty of thickness, but at the bottom the inside and outside pad both had worn until the squealer was just making contact. It was almost like the pads weren't grabbing firmly enough and jerking the bottoms up and in, while the tops went up and out.
I tried replacing the brake lines as well back then but no one carried the hoses with the proper ends on them. Autozone and NAPA both came up with the wrong hoses.
I've read studies where the issue with single piston calipers can do this due to the shift of the piston against the rubber seal, letting the piston cock slightly in the bore. Maybe I should go ahead with the later model '98 dual piston calipers on it.
Blake
 
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