"Maybe" for Hemi Healey ? Standard RX 7 diff. will likely prove,too light. What then.? Maybe Porshe 996(six sppeed) or ? Corvette C5/C6, not a good choice as major floor surgery and moving seats forward 8+" required. This is because 23.5" axle centerline to torque tube mounting face. I like the value/ strength to weight ratio, and improved weight distribution, of these basic designs. Anybody ? Thanks, roverman.