Many of you know that i did a 5-speed swap a few months ago. My donor truck was a 91 and my driver is a 94 factory turbo. I was just told lately that the flywheel for a 94 factory turbo is balanced different than a N/A truck. It makes no sense to me but i have a vibration above 2500rpm and thought just maybe this could be the problem. Anybody know if there is a difference in flywheels?