Ford 6R80 Teardown & Autopsy - Clean Break!

I tear down, inspect and investigate the causes of failure on a 6R80 out of a 2016 Ford F150 4x4. I provide some important information you need to know about these transmissions including how they function, command and control frameworks as well as key procedural steps to take before tear down. Along the way, I show some of the specialized tooling for this transmission, how the tooling is used and touch on alternative approaches if you don’t have access to the tools.

Additionally, I cover a little bit of the 6R80's history, key engineering changes, timing and prospects for interchange and wrap up the video with a forensic examination of the remains, post-cleaning.

This video is very long and heavily detailed, intended to give viewers who are contemplating rebuilding one of these units for the first time a comprehensive look at these transmissions so they know what they'd be getting into so they can decide to “go” or “no-go” and prepare accordingly.

Use the table of contents below to skip around or jump to the section(s) that most interests you:

1. Intro-Overview 0:00
2. Preparing for Disassembly 2:26
3. Converter Function and Drain 12:15
4. Teardown - Exterior to Case Belly 16:27
5. Case Air Check 44:49
6. Parking Mechanism 46:41
7. Disassembly - Case Interior 54:14
8. Subassembly Deep Dives 1:17:14
9. Autopsy (Clean Parts) 2:11:07

[larryschaum]

Excellent video. I am eagerly awaiting your valve body vacuum test.

[johnbishop]

Good afternoon nick your videos are better than sitting in a class room

[Manof]

Great video- I think your videos are the best out there. Keep up the good work.

[narc]

WOW, thanks for taking the time to make such a top quality videos and sharing your knowledge. Your videos are gold. 👍

[chadison]

I’ve also had a groaning/gurgling type sound since my last pan drop about 20000 miles ago. It’s noticeable at parking lot speed or sitting still. It doesn’t it in drive and reverse but noise goes away either in neutral or park

[arlosguti]

good video very well explain. but i have a question for
Nick's can the pump be remove without removing the valve body? i know the filter has to be taken out. thanks in advance

[alibaggio]

Hi, Thank you so much for the information. I am working on a 17 f150 6r80, changing the lead frame on it. Im replacing with a new OEM part from the dealer. the truck was running and driving drive and reverse with just an intermittant p0720 and p0722 codes. after replacing the lead frame the truck would not engage on reverse. the indicator show R and live data as well. its just not moving in reverse at all. Do you have any idea what would be the possible cause of it? thanks in advance

[jasoncharles]

What are your thoughts on transmission fluid for something like the 6R80? Do you have to go with the Motorcraft Mercon LV or will the Valvoline stuff be fine. I am going to do a pan drop and don’t have a dealership around to get the Motorcraft Mercon LV. What do you use?

[DallasMiratana]

I stripped my first T6 ranger 4x4 box following your guide.
2nd to 3rd and 3rd to 4th decent acceleration it slips
You got any suggestions, the clutch frictions all look good.
Valvebody or torque converter problem perhaps or even the bridge seal you referred to? I do have forscan if you have any live data pids to compare

[mashdatrashvideos]

Really great videos, what state are you in? Thanks

[ryandarley]

Hello Nick. This is a great video. Question, my 2014 f150 snapped the transmission line off and I lost 8 quarts of fluid on the freeway. Fixed line and filled it up, Now it slips or doesn’t down shift correctly. Any temp fix to improve the shifting while I save up for a rebuild (pull valve body and clean ports etc)? Also contemplating a ETE remanned from Autozone. Just trying to stretch out having to pull the tranny right now. Thanks again awesome video.

[TheSeangerber]

I have reverse and no forward. Lead frame and valve body replaced. Trans had water in it when I got it.

[chadison]

I have a 6r80 with 250000 for the last year I have had a loud squawk on the 3-4 shift and also 4-3 downshifts. The tsb friction modifier did not help. If anything it made it worse. Any ideas?

[fabricancustoms]

Hey Nick, quick question: I recently rebuilt an old TH350 transmission and the output shaft, while I am able to turn it by hand, doesn't turn very smoothly. I am unsure whether I need to disassemble it again and look for tight spots on the bushings or whatever. It would spin quite nicely up until I have the input shaft and drums installed, and the input shaft spins nice and free and has .020" endplay. Any advice?

[GrandPitoVic]

Are the 6L80 and 6R80 the same trans or is it the 10L and 10R trans?

[jlovee]

2015 6r80 no 4, 5, 6 gear throwing for p07aa any idea?

[csenior]

Awesome video. I learned a lot. I think…..😂

[GrandPitoVic]

Sorry brother, i should watch before i ask questions lol.

[terrypetty]

Great Cesar's Ghost man learn to edit. This is HARD to watch.