Stop in for a cup of coffee

I've rebuilt both models. Easy peasy
Great!
If you recall I need to rebuild the one in my Barracuda. Its needs to be set up closer to stock and with new late version sidegears.

And the Fee is just that. You own NOTHING!!! Cannot be sold by you, just flushed money!!
But like you posted, some of the price is the privlege of living in La Jolla.
Probably cheaper if it was someplace less pricey - like out by Edwards AFB and Willow Springs

Got the additive and 85 140 on the way. Got Lucas HD high performance gear oil
That doesn't sound right except maybe for trailer towing.
Lemme see what I figured out was the closest to spec these days (for an 8.75 with Dana clutch Suregrip)