I just bought a T5 swap from a guy, and do not know if the flywheel was off a 1 pc ream main seal motor or a 2 piece. Is there any way to tell? I have a 1 pc RMS Motor, just don't want to start the swap and have problems.

A 2 piece RMS flywheel has a 3.58" bolt circle. The 1 piece has a 3" bolt circle, and a counterweight.

Thank you sir.