[SB406]

I've got Impala SS rear discs on my 71 GMC. I went the other way though.....Got an entire rear end out of a Caprice Cop Car (Same as Impala SS), cut off all the caprice trailing arm crap. welded on my own saddles & shock mounts & bolted the entire setup into the truck. That was the main reason I chose to start with a rear leaf truck. I've got the parking brake that works on the drum inside the rotor. E-brake cables were a lot easier than expected. I'll try to snap some pics.

I'm probably the ONLY guy to take OUT a 12 bolt, but the 8.5" 10 bolt from the caprice has 30 spline axels and is beefy enough for what I'm doin.

I have another one slated for my '58.