Torque tube idea works fine on Corvettes and such as the rears are IRS not straight axles. Same deal on Miatas and RX-7s (after first gens). The whole drivetrain is locked together and nothing moves but the CV jointed drive axles.
R-Bo
1959 Apache 1/2 ton Big Window, Short bed Fleetside (under reconstruction) 1966 GMC 305V6 in the family