In rwhite692's LS1 rear disc install pictures, it looks like he used a spacer between his axle housing and the LS1 backing plates. Have others had to use a spacer here as well?

rwhite692's website:
http://community.webshots.com/user/rswhite

Thanks,
Greg

Ive been wondering about this! I need a spacer about 3/8 in thick

check out brp they sell these and are great
http://www.brphotrods.com/Rear%20Brake%20kit.html

I bought this and the front bracket kit from them and it was pretty sorry. The rear spacer is OK, but mine came sprayed with silver paint, not plated. The front kit was junk, in my eyes. He put a thin metal spacer in the front hub to gain about .030 so the caliper lines up correctly, it appeared to be hand cut. it spaced the inner bearing and was installed between the bearing and the hub, dangerous in my mind. The entire front kit was also sprayed with silver paint, the hubs, brackets etc.
I would not recommed BRP to anyone.

Yes, you need that spacer.
Does anyone know if this kit (98-02 Camaro) will work on the 68-69 staggered shock set up. It works on my 67 but don't know about the 68/69.

You need to move the shocks on a '68-69 or use two of the same side backing plate to clock the calipers away from the shocks. There are some Blazers and other mid-size trucks and SUVs that use a similar rear rotor, but with an integral parking brake bracket and the proper clocking for staggered shocks. For what it's worth, the spacer is about 3/16" thick.