I believe that you stated that you have a T5 rear? I happen to have one under my workbench with the .68 5th gear. I took it out of the Cobra because the
oil leaked out of it and the tail shaft bearing wore out causing a bad driveshaft vibration. I could not bring myself to throw it away. You can have it and combine the best parts together to achieve your goal. I am on the north side of Los Angeles. Where are you?
RS