i do have an 8-point cage i just finished. the rear is an 8.8 with modified internals. it has an auburn posi, 3.73's, 31 spline moser axles with 5 lug and stock cobra disk brake set up. in order to fit the 345/30s, i had to relocate where the lower control arms mounted to the axle tubes. cut off the factory mounts on the axle tubes, and put some custom brackets which were moved in about 4". i'm using tubular / spherical rod end upper and lower controls. the rear frame rails were cut out and re-routed to provide enough room, but they do tie back into the original frame rails in front and behind the rear end. its still basically a stock 4-link set up but now provides more clearance for the steam rollers.
i have everything on my site. here is a link to a vid i posted on my documented build on "theturboforums".
http://boostedhorsepower.com/MySite/...braRebuild.wmv
thanks,
michael