[Aussie Mike]

Hi Phil,

I've been looking at these diffs and the mounts on the web. I reckon it'll be pretty straight forward to fit one into the CR chassis.

The front mount is easy, you could do something similar to my front mount and looking at the length of the pinion you may not even need to cut into the cross member above the input yoke. I'd probably run tabs off the lower cross member rather than the upper as they will be closer to the mounting ears and easier to weld in with the body on.

The back mount is a bit more complicated but not as difficult as I thought. I'd machine that central mount off the back cover completely and cut out a steel plate (either with the plasma cutter or get it professionally laser cut) the plate would bolt over the back cover and be held in place with the back cover bolts. Have a look at some of the aftermarket Mustang cobra rear mount supports to get an idea of what I mean. From the steel plate you fabricate bosses to let you bolt straight through the back cross member. I'd weld some crush tubes through the rear cross member for extra support.

Axles would be easy as long as you can get the 31 spline CVs that plug into the diff. Custom axles could be machined from Hi-Tuff or similar material for what ever rear end width you chose.

If you lived near me I'd be keen to give it a go.

If this Commodore diff breaks on me I might have to look at one myself.

Cheers