AC
If I understood your question right.... here's how we mounted the TKO 600 to the chassis.... we turned it around verses how the Kirkhams mount the rear of the TKO..... The main reason was it's easier to slip the TKO into the bell housig and the clutch plate.... we use a Double Plate 8" racing clutch. We've had the trans in and out many times and it worked great....
Here's how it's mounted in the chassis
Also you'll note that we are using a Mark Williams Yoke and it's for a 1350 spicer U-joint.... we do the same on the rear diff.... in racing you take no chances with lots of HP and right next to your leg.... Just Saying....