slant 6 auto(904) to 4 speed help

the 75+ a body slants had a 4 speed bellhousing as well as some pick-ups. the /6 bellhousing is the same as a 3 speed unit, difference is the extra holes for the 833. when i did my changeover i was lucky and found a complete 75 duster in the junkyard - grabbed everything from the flywheel to the driveshaft.

i know its for a big block, but a lot of the info is relevant
http://www.bigblockdart.com/techpages/4sptech.shtml