OK have any of you done this yourselves? Looking for person with real hands on knowledge of the process and measurements to center the pinion. I would also like to maybe narrow it a 1" more than the stock 8" on each side to allow for east tire removal. Thoughts with some measurements if you have them. Thanks in advance. I am installing the COMPLETE engine/transmission/EFI/rearend into a nice 66 convertible. I,ve done this before also installing a title column and O?S Box or power rack undecided on that right now.