'92 brakes...

[alkaline747trio]

Having a little trouble with my '92s brakes. After I lifted it and put the Slee SS Brake lines on it, everything was great. Then it started to go downhill, so I adjusted the LSPV down, and all was better...for a little while. Now I have 2 issues:

1) If I use the parking brake, when I release it and move at all..the brakes stay tight (hard to move), and even light application of them will lock up the DS rear on gravels untill I travel for a while.

2) Pedal feel has slowly deterriorated since I had the brakelines replaces, now it is poor at best (braking is poor also) unless I pump the pedal 1-3 times.

Could my issues be stuck/broken return springs and/or air in my lines? Is there anything else that it could be before I start tearing into my rear brakes (all pads/shoes were replaced less than 5k ago, rotors and drums were resurfaced at the time).

 

[80jay]

try bleeding the brake lines a little more for air, I also just replaced mine for man-a-fre's and they felt the same way until i went back and bled them agian, now they feel better then ever, or It could be my imagination, but there better then they were.

 

[alkaline747trio]

I think that is probably it, but this will be the third time I've bled them since I replaced the soft-lines.

 

[jcj_78FJ40]

I recently have had the same problem with my 91.

The DS rear wheel would lock up at slow speeds, especially when cold. It got so bad that the truck didn’t want to move at all. I had to drive in reverse to break things up.

I decided to put in new wheel cylinders. Figured that it was a good time to do it even if it wasn’t the problem. When I pulled the DS drum, it almost looked like the pads were overheating and melting. There was a gum-like residue all inside the drum. I put in the new cylinders and cleaned off the drums and put everything back together and bled the brakes.

Like you, I could tell that I didn’t get all of the air out of the system, the brake pedal was just a tad bit soft but the drum was no longer sticking. After repeated tries to get the air out I finally gave up and decided to take to the brake & muffler shop. By the time I got the truck to the shop, the rear wheel was locking upon again. I asked the shop to bleed the brakes and fix the DS drum. They did get the air out of the lines but they couldn’t find any thing wrong with the drum. Again, they just cleaned off the drum and put it back on.

Drove for almost 3 days before the wheel started locking up. Finally I pulled off the drums and had them turned. So far this has pretty much fixed it. I am also planning on installing new brake shoes. The ones on the DS just don’t seem to be wearing quite right. I have heard that brake shoes can harden if they don’t wear correctly. They say you can sand off the hardened surface but since shoes are fairly inexpensive and made of asbestos, I think I will just swap them out

Hope this helps.