All the usual. Extra clutches/steels, upgraded apply pistons, five or six pinion planetary gear sets, sonnax sure cure, BW heavy duty governor solenoid, Etc.

 

^ Yeah, that! I bought the 5 clutch direct drum set from WITTRANS as well as the 6 gear planetary set. Tranny is doing great. Got bold two weeks ago and took it on a 1000 mile raod trip to Houston and back. IN addition to having a solid tranny, ther was some satisfaction in knowing that I rebuilt it with help here on DF. Cost was less than taking to a shop, even including the upgrades.