Wow finally a 6R140 video thats good quality most annoying part about the disassemble of these assembly are the dang output shaft nut and the center support snap ring. Glad they got rid of that with the 10R140 made my life so much easier. Keep up the quality videos.

Sweet stuff! been eager to see the insides of this beast, seems like not many people have videos, good videos on it.

good stuff brother

Excellent! Thank you for sharing.

I tried to respond to your comment but couldn’t get it to go through. What is an L/S kit? The trans I am working on is out of a 17 Super Duty. The L/R clutch is heavily damaged. Everything else actually doesn’t look bad other than some nasty fluid. When I took the valve body apart I only saw 2 of the 3 check balls. The other was in pieces, 2 of which were lodged in the valve body worm tracks (1 piece in each half of the valve body). The one that broke apart is supposed to live in the “bath tub” cavity and looks to be able to seal off one hole or another in the separator plate. The bath tub lines up with the 3,5,R valve. My thought (and I would very much welcome your opinion) is that the L/R clutch was being applied in 3rd and 5th and basically dragging during that time bc of the check ball being gone. I am going to use the Zipkit, seals/gaskets, frictions, L/R steels, filter, and a fresh converter. I feel like it will turn out well.

Great Video! Quick question, are there any valves in the pump? If so, which ones?

Okay 30 plus years as a tech, dove into transmission repair/rebuilding harder than ever about a year ago and fairly happy with my progress (I have built about 60 now of various types and brands). First 6R140 and I thank you for both videos. Were you able to pin down the reason for the intermittent neutral issue? Something in the valve body as nothing else looked bad enough with the clutch packs or splines/sprag?

Anyway you can tell me if the spline for drive shaft is easily removed after you remove the lock tite spin on nut

What’s the torq on the nut whe you putting back on the torq spec’s

The output shaft bearing likes to come apart and chew up the output shaft it’s a caged roller bearing also input shafts like to break and I would sell not overhaul the main control valve body