is this tranny the stock one that came in it? or was it swapped in? if its stock its not a t-19 but rather a t98 or t150. is it a 3 or 4 speed? does it have a granny gear? i.e 6.32:1. if its a t98 you could probably find a used one for cheap and just swap it out. check out www.4wd.com
for bearings, seals, etc, i think they can get gears and other hard parts too.
1979 CJ-5,360,full width 60, front, 14bolt rear,4.10's,Lincoln lockers,SOA front/ 4 link rear, Beadlocks & 42" Iroks!