So I have a 89 licoln town car with a 302 HO that I am swaping into a 81 cj7. I am going to mate it with a ford np435 manual transmission. I have a 50oz flywheel for a 89 mustang that I would like to use. The Bellhousing and statrer fit . Do I have to balance the flywheel with the harmonic balancer? Or can I just bolt it together and go?