[400TT]

Yeah, make sure it's a World Class T5. Basically that means it's off a Mustang V8.

We've noticed a lot of Cobra's going around with Mustang 6cyl T5 boxes. They seem to be the ones that get lunched easily and give the other World Class T5 boxes a bad name.

Correct me if I'm wrong on this guys...

Ford 9" is a nice way to go to have an entire Ford drivetrain. If that's what you are after. A cheaper way to go is to find a 9" housing & axles that have already been shortened for Torana. I think it still needed to be modded though.

To fit a 9" in a DRB required notching of the rear chassis cross-member in front of the fuel tank.

I'm guessing you are going shortened 9" as you can keep the same Torana stud pattern & same offset(deep dish) on the rear. So can basically use your existing wheels.

To save a bit of money you could with Commodore VN/VP rear end. Would not need to shorten it, but would mean new wheels for rear.

Warwick Harrsion was master of modifying DRB's. He has fitted adjustable coil-overs to a few, panhard rods, watts links, Commodore rear ends etc etc.