Rebuilding the rear axle for my 40 Studebaker build. 350 Olds engine, some performance upgrades but basically tame, and a 200R4 trans. 73-4 Camaro 8.5 rear. These old studes were a light car, 3300 pounds on the title. I'm sure the new drivetrain drives that up. Not looking to drag race, just a quick cruiser, limited hiway. Also going to posi. I'm thinkin 3:73? Thanks.