1986 1/2 ton Rear Brake- 2-3/4" vs 2" Shoes

[spacetransient]

Does anyone know what is involved in swapping out drums/shoes from the 11" x 2" drums/shoes to the 11-5/32 drum & 2-3/4" shoes? Inside specs are almost identical. Wheels are the same 5x5.

Drums are deeper of course but otherwise, what would be the problem with a swap? I would really like to use the larger pads if I could!

Thanks for any responses

[SCOTI]

The backing plates, drums, & shoes are different between the two versions. All other parts/hardware swap over.

[spacetransient]

Originally Posted by SCOTI

The backing plates, drums, & shoes are different between the two versions. All other parts/hardware swap over.

So is the bolt pattern for the backing plate the same? If so this would seem to be a simple swap- the backing plates are only like $20

Drums are a wear item anyway and mine are due for a turning/brake job.

Any reason not to spend the extra $20 x 2 plates; and get new drums?

(any downside to this other than some initial cost?)

Thanks!

[SCOTI]

Yes, the bolt pattern for the plates is the same. Where did you find the 'correct' backing plates for $20?

[spacetransient]

Originally Posted by SCOTI

Yes, the bolt pattern for the plates is the same. Where did you find the 'correct' backing plates for $20?

$20 each- Junk yard of course

Still- anything I can do to extend brake life is worth it to me.

Many thanks!!

[SCOTI]

Originally Posted by spacetransient

$20 each- Junk yard of course

Still- anything I can do to extend brake life is worth it to me.

Many thanks!!

Ok... for used parts that's about right. I've done this swap on 3 of my trucks now. Increases friction contact area by 35%.