My "new" '74 Duster- or why I need a project like a hole in the head

Glad it's done. I like how in general we made the same thing in different ways (my conversion for others reference is https://www.forabodiesonly.com/mopar/threads/t56-magnum-conversion.416558 ) My kit came with the sleeves for anti-crush and also I didn't cut anything off the transmission, my tunnel is slightly wider, I can pretty much install every bellhousing bolt from the bottom with some minor engine tilting.

My transmission isn't an XL, its the same case as yours, just the TUET-16885 which is 2.97:1 1st and 0.63 OD. I have driven mine for a couple tanks and I'm getting 15 mpg on short trips so its about 1.5 better than no OD. The Cruising factor is incredible though. Now that its broken it it shifts like butter. No kidding it's incredible, I doubt you could make a better upgrade to one of these cars. In my case with the 25.6" dia tires and the 3.23 is 1900 rpm at 70, mine pulls it awesome.

The other thing is this transmission holds 700 lb-ft of torque so you will have to try to break it.

In my case, good to know about the corvette hydraulic throwout bearing, I'm not a super huge fan of the aftermarket shimmed ones.

Curious about the choice of Syncromesh fluid, considering the giant Dexron III only sticker on the side