Hi guys...

I am swapping a t5 into my 86 iroc and the t5 came out of an 84 bird with a 305. When I went to put everything together, the flywheel from the bird is a heavy one and the one off the Iroc is really light and has a weight on it. Of course I was going to use everything off the bird so it'd match, but since the bolt pattern is different can I just use the light one with the t5? Thanks for youe help!! Couldn't have done this swap without you guys!!!!

:yourock:

 

well if your car had an auto trans to start with you have a flexplate not a flywheel which is really light.....the flyhweel should weigh around 30lbs regardless of the year if it came out of a 3rd gen

 

Oh... So now I need to go find a flywheel for a one piece rear main seal? Is this correct??? Guess I can't just use the flexplate....????? Thank you!!!!

 

a flexplate has big holes in it usually.....and flywheel is solid steel and looks like a huge brake rotor, with 6 bolt holes around the circumference

think about whats going......the clutch disc is sandwhiched between the flywheel and the pressure plate.....it rides on the surface of the flywheel

 

Yeah, I see what's going on now. Just learning all this stuff. Guess I'll go try to find a flywheel for a one piece rear main seal tomorrow! Thanks!!!!

 

no problem

 

The flywheel for a 1 pc rear main block is externally balanced, sor you're looking for a 153 tooth external balance flywheel.

 

OK thanks! If i find a flywheel for a 1 pc rms can I assume is externally balanced? I think I found on online, but it doesn't say internal or external, but it is for a 1 pc rms. Thanks again!! Couldn't do this stuff without you guys!!!

:yourock:

 

all of the 1 pc seal flywheels are balanced the same, unless they are for a 383/400 crankshaft that hasn't been internally balanced.

 

85TransAm406...Thanks from coastal NC!!! Good to see more thirdgens around!