Putting in a Jerico 4 speed DR4 for drag racing. Has a 6.4 depth . The T5 bellhousings I have is 7.5 deep. Also is there a differences in the flywheel teeth count between the pinto and 87 up Mustangs. The late Mustangs I think is 132 teeth manual flywheel. I thought they were thinner also then the Pintos and Mustang 11 2.3 units . Thanks.