I couldn’t wait- I took the other ‘77 case down, simple green’d, scrubbed, power washed, dried with compressed air, and hosed the sprag race with wd40.

It looks much better than the first one off the complete trans core I disassembled this morning- tight sprag race, all tapped holes good, all sealing surfaces smooth.

It’s interesting that the casting dates are only 9 months apart but the good one has more ribs/reinforcement in the starter area. Had to do a double take and measure the top bolt holes to be sure they’re both big blocks!

Edit: left is dodge truck rt is chrysler car that could explain it? Truck bell beefier?