Tips and advice needed for brake work on '97 K3500 DRW...

found that is best to coat the pins and bushings with brake fluid, as grease seems to make the bushings swell up and become tighter.

Well, the factory service manual says to fill the bushing bore with grease. It's all together now anyway and filled with decent synthetic grease so hopefully it will be ok.

Pete C.

Reply to
Pete C.
Loading thread data ...

found that is best to coat the pins and bushings with brake fluid, as grease seems to make the bushings swell up and become tighter.

The factory manual said grease so that's what I used. I did use new bolts and bushings, the seals don't appear to be available separately for some reason.

Pete C.

Reply to
Pete C.

Alrighty, two new sections of hard line in. Had to drop the blasted gas tank to get to them. I've still got an issue with the rear brakes, probably due to failed axle seals. They don't even give you an inspection port on the damn things.

Seems I need a special wrench to get the damn hub/bearing lock nut off as well, J-2222-C. Seems nobody has it even though there are literally millions of these axles around. One more pain in the ass. If I can't track one down at a reasonable price tomorrow I'll probably make one myself.

I did have fun bleeding the brakes by myself though. I threw together "Robo-Foot" out of some Unistrut parts and a pneumatic cylinder so I was able to remotely operate the brake pedal while under the truck operating the bleeder screws. Worked quite well.

Pete C.

Reply to
Pete C.

Got the wrench, turns out it's a perfectly ordinary six lug on 60mm circle deal same as some front axles, but the applications guide doesn't cross it properly.

Got the left side that I know had a problem apart and sure enough it's dripping with 90wt. That's the fourth axle seal to go on this truck. I've not read of seal problems on the GM 14 bolt 10.5" ring gear full float axles so I'm rather stumped as to why this one eats them

The drum seems to be ok since it wasn't really doing anything. Looks like some brake cleaner and a little deglazing will make it serviceable and save me the trouble of pressing the studs out so I can separate the hub and drum.

This project has become quite the pain in the ass...

Pete C.

Reply to
Pete C.

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.