You can use the flywheels from any Buick 350. The skylarks were most likely to have manual trans vs the other models. You can buy them new at TA performance. The 68-71 Jeeps where available with the Buick 350 and manual trans, I have a setup from one for sale right now actually. The flywheel needs to be cleaned up due to sitting in the shop for years, PM me if you are interested.
