Bookshelf

I've got 4 flywheels laying around, 3 different styles/kinds/part #'s. Does anyone know what changed over the years and why? I have 2 that I think are early firstgen flywheels that are thinner overall but the mounting surface that goes to the crank is raised. There is a raised ring around the outside circumfrence of the face. I have one I think is from a 93 that is thicker, has a flat back and that same ring on the outside face. I have another one that is thick like the last one except it doesn't have the raised ring on the face, its flat. When laying side by side all the ring gears and faces line up w/ each other. Any ideas?

Trebor

Part numbers would be the best way to identify them. Thickness can vary depending on the number of times it was resurfaced. I have seen .250" removed on ones resurfaced twice. Also check the thin ones carefully for cracking.

Bar W

The one with raised ring and flat back is like my 93 I just reworked it should be for the old getrag trans (it should have the biggest bolt holes for the pressure plate) and the other 2 with a lip for the crank should be for a NV4500 (5 spd) the only one that I know that is totally different is the NV5600 (6 spd) the ring gear is different it is flush with all the way around with the surface face unlike any other and is much thicker hope this helps.