[JLMounce]

I want to revisit this a bit. I do have a set of 2* pinion shims that I am going to get installed next week. However, I keep coming back to the fact that this new issue cropped up due to a change in transmission, not a change in the rear axle. The car sits the same, the axle wasn't moved in any way etc.

I don't have angle measurements of the previous engine, but I'm fairly certain it was at a shallower angle, simply because I lost ground clearance at the header collector, which is noticeable now that I scrape that coming on and off my lift, where before I didn't.

I know the engine is down slightly over 3* and the driveshaft is up 2.5*. My understanding is that because these are opposing angles, instead of similar angles, I would add those together to get the working angle at the slip joint. That gives me a working angle of 5.6* as the car sits. That is before the pinion climbs the ring gear which would exacerbate that angle further.

I am thinking now, that this may be an "and" solution. Not only do I need to point the pinion down a couple degrees (which will reduce the angle at the slip yoke slightly) but I believe I also need to bring the tailshaft up slightly, further reducing that angle.

I plan on doing the pinion shims first and seeing where I land, but as I think about this more, it may be necessary to make changes to the transmission mount as well.