1986 GMC Sierra Classic drum brake

[johnmcgee8541]

Hello,

I recently bought this truck and changed out my spring hardware, wheel cylinders as well as had the drums turned on my 86. I am banging my head against the wall because the left rear drum will not go back on. The shoes are still thick so I reused. They came off very easily. The shoes do not appear to be bent. The shoes will not move at the top to collapse the pistons and give room for the drum to go back on.

You must be registered for see images attach

The wheel cylinder pistons are not stuck and move freely and my adjuster is all the way in. I've looked in the digest here but haven't found a subject on this yet. Anyone have this problem? Thank you for your help. John

 

[Broken85]

Looks like a new adjuster. Are you sure it is the same length as the original? There are are different length adjusters for different size drums. Who knows which one they gave you

Everything else look correct from what I see

 

[johnmcgee8541]

I checked it against the one that came off and it’s spot on. Ive taken it apart and measured all the springs and hardware as well thinking they might be a little different but nada. Thank you.

 

[idahovette]

Adjuster is mounted wrong.....slots go vertically up a little farther on the brake shoes so the adjuster wheel contacts the lever?

 

[dusterdude]

Idaho is correct,move the adjuster up a tad

 

[johnmcgee8541]

I checked it against the one that came off and it’s spot on. Ive taken it apart and measured all the springs and hardware as well thinking they might be a little different but nada.

 

[johnmcgee8541]

Thank you gentlemen !!! SFMF