Everything is a new install. Motor and all. The conversion mounts do not place the engine at a perfect angle every time since the tolerance of these cars allowed for some errors. If the motor mounts are rotated ever so slightly, that can result in a large change at the tailshaft of the trans. I actually had to shim my motor up to clear some steering. To combat my issue, I am going to remove my motor shims and keep the 5/8" tail shaft shim. This puts me at a perfect coinciding angle with the pinion. Of course once all of that is done, I will add a degree or two to the pinion side and add some caltracs to help with axle rotation. I would keep the snubber, but I like caltracs more. Both work, one is easier for me to fit my lard *** in to adjust at the track. :lol: