Update: I believe the problem must of been a sticky valve. It must have only been sticking with fluid pressure on it,because when the valves body were out I could move all of them easily with a pick. I ended up having to drive the truck anyway without OD. Then somehow after around 100 miles it...
it was out during the rebuild and u can't put it in backward, I checked, so it should be fine. I've had this tranny out, torn down, and back in like 4 times and I can't figure it out.
ya the fluid transfer bolts were replaced with the rebuild and were tight. snap ring for overdrive piston was replaced with updated spiral ring. and the retaining ring for overdrive backing plate to case was upgraded to thicker to close up od clutch tolerance.
Need advice. Just rebuilt 2001 7.3 psd w/4r100 with pto. mechanical diode had failed. Replaced with updated direct clutch drum w/ sprag. New clutches, steels, bearings, and seals. Also installed sonnax sure cure kit.Other than sure cure kit, all stock no programmer.
Transmission will not shift...