Question for Tony. I have 2 292's one a 73-84 model, the other a 75-84 model (according to casting #'s), one has a TH350 bolted to it and the other an SM465 4spd. My question is, I need to swap transmissions (switch SM465 to good 292) are the flywheels interchangeable since the cranks are supposed to be identical? Does Santucci's manual address the flywheel issue? Thanks for any help!