Nice R8 Ledge. The Vette looks good too.
It's always good to see another LS1 making it's way into a Cobra. Welcome to the Dark Side:
The Dark Side
Let me know If you want your T56 shifter modified to fit the Cobra.
I was under the car with a tape measure the other night and I've been looking at this diff conversion carefully for a while. The axles between the Ford and Holden units have the same spline and they are just held in with a spring C clip on the shaft. you can pup them out with a little leverage from 2 big screw drivers. I'll run the Ford Axles (complete with CVs) in the Holden housing. The mounts aren't to much of a problem either. The Ford mounts off the back cover and the bolt pattern on both covers is tha same so I'll run the ford cover on the holden housing and that wil take care of the back mounts. The front mount next to the pinion will entail cutting the original mount off the chassis and fabricating a new one and welding it on (all in a days work in the Murphy workshop
). There are a couple of hurdles that I can see. The fill plug on the Ford diff is on the housing and it's on the back cover on the Holden. I'll probably have to machine up a fill plug and weld it in to the Ford back cover. The Holden diff is from a VX which uses a rubber coupling on the pinion flange. The flange pinion has a spiggot that centers the rubber. I'll buy an earlier VT flange which is designed for a uni and change it over. The spiggot will feel the wrath of the 9" angle grinder.
I'll keep you posted with some progress pics of the conversion.
Cheers