I picked up a 3.23:1 rear disc brake rear out of a 1991 GTA for $125 last night. This will be going in my 1991 Z28 to replace the 2.73:1 drum rear it has now.

For whatever reason, someone removed the backing plate from one side and lost the bolts. Does anyone know what size/thread the backing plate bolts are for a 1991 10bolt disc rearend?

How about the caliper bolts? I'm missing those as well.

Heck, if anyone has either of those to sell and can ship today, I'm all ears.

 

The following pdf files should provide the info you need.

JamesC

 

Thanks - Do you have the .gif file that comes with the PDF? It doesn't seem to enlarge w/o them.

[edit] Just took another look at the rear and the damn caliper bracket on the pass side is missing!!

 

You can zoom in if that will help. If not, let me know and I'll provide the info.

JamesC

 

It won't zoom in w/o the associated GIF file - The PDF ties to it.

 

Odd, zooms for me. Look at the tool bar when the pdf comes up.

JamesC

 

You must have the .GIF file on your computer - The PDF refers to this file and that's the error message that I'm getting.

The PBR Caliper-2.pdf file refers to "4-91.gif" to zoom in on the PDF. If you search on your computer for that file, I'm sure you'll see it - Apparently its not "built in" to the PDF.

[edit] I wound up finding the GIF file on austinthirdgen.org - Thanks for the info! That's exactly what I needed.