So ran into an issue, periodically it would not want to shift automatically, pulled the governor out and it would stick, so I put it in the sovent machine overnight, blew it out and reinstalled it. no change.
Fast forward two weeks, ive called around nobody has one laying around, never thought id see the day when a part for the most common GM trans ever made is hard to find.. So I finally break down and buy an AC Delco model, NOS online, it takes a couple days and it arrives on friday, put it in and vroom shifts perfect, nice and firm with the kit, loving it. Its still somewhat scary to drive with the steering box and brakes but one system at a time. Gave her the first oilc change and holy crap that black ugly sludge rolling out of that pan made me nervous, sure ran a ton better too.