Very good catch and great effort showing it to us. I am positive many others would have missed this one.

Always a lesson learned . Thanks for your time and the knowledge you share. Most people with this type of building and troubleshooting skills don't want to share their knowledge or experience with an odd failure like this . Have been to school with your lessons on the 4r75w. Thanks again my friend!

When I started rebuilding again I subscribed to your channel, didn’t here from you for awhile, Welcome Back

Thank you for posting this video. Just overhauled 6R80 in a 15 Mustang with the same exact problem. Unfortunately I did not see It during the overhaul so I had to go back in it, but found your video and knew I was going to find a crack in the 456 drum, sure enough did!

Hello Hiram..... I really enjoy listening to all your videos because you take the time to explain (in detail from experience) with proper terminology all the possible problems to be aware of!! You are by far one of the best builders because you take alot of pride in what you do and strive to be the best!! Your customers are in good hands for sure!! I wish all professionals trades strived to be the best but alot of people cut corners and rip people off for lots of money which is a sad state of affairs for the consumer!! Kudo's to you my friend and keep up the "GREAT WORK" that you do!! You put alot of people that do videos to shame for sure!! Sincerely Tim D

Hiram, I can see you are really good with 6r80. Glad I found your channel. I have a 15 transit 350 with 3.7. 6r80. Codes P0706,0707,0712,0715 I have been having this vibration sound for a long time, I would describe it like a low bass sound, from big sound system. It comes and goes at any speed above prob 40mph. It will sometimes happen every few seconds and it last for a second or 2. We now have 135k and it started 50k or so ago. I have taken it to several shops and they all say it’s tires or shocks or something and never fixed the problem. Last week I was headed up in elevation on a road trip, no trailer. And I was noticing the rpm would bounce +\- 200, when the sound happens. Then, the sound went away. Approx 50miles later I noticed fluid getting on my rear Windows. I kept driving and made it the next 100 miles to our destination. During the 100 miles, it didn’t ever shift down when pulling hills, it stayed in 6. Even if I manually tried selecting another gear, it wouldn’t allow me to change. After getting into town, I shut it off and when restarted tried, it shifts hard to reverse and drive. It operated fine in R. But feels like I’m still starting in a higher gear. We trailered it back to our town. Where I now have it and am ready to work on it. What are your thoughts? I purchased: lead frame, case of fluid, filter, and it was all here by the time we got home. Now I’m thinking torque converter too. Or am I too far into it and should just bite bullet and order a trans? Where would the fluid have come from? It looks wet on bottom of bell housing…

Glad you are back. Missed your videos. And you show how to put them back together unlike some other channels. Why take your secrets to the grave with you? Makes no sense. Glad you share your knowledge with us all.

Excellent!! And you are right about road tests. Nobody drives exactly the same. I've even had to have the customer drive it so it would show up problems, and the way they drove it was not quite what the manufacturer had in mind. Bill

You just saved my a$$. Thanks for posting.

p.s. I thoroughly enjoy your videos and I'm glad to see you back on the YT!

I have the same transmission in my 2016 Mustang and it’s been shifting funny also. It will upshift so quickly that by the time you’re going 45-50 its in 6th gear.

Hey Hiram :) Now that is sure a sneaky spot for that crack and you must have the eye sight of an eagle..

Yeah you had to get it warm up that's why it wasn't obvious. Love your channel

Mate, you saved SOOO much trouble you have no idea. Story: My PX Ford Ranger (Not US Ranger) had a transmission issue. Overheat, no lockup, lucky to make it home, 500km of towing at 80Kph then off to mechanic. “No worries! Gearbox rebuild at a specialist in Perth, Western Australia, 500km away- we’ll send them the box, they rebuild and we’ll put it back in!” $11kAu and it’s back. Transmission specialist said it was the worst they’ve seen, didn’t understand how it was so worn. Picked up the vehicle: “Bit rough as it’s learning mate!”. Well. I immediately suspected it was in need of a LOT of learning, as it was bumpy, weird changes etc. “Oh that’s the computer! We’ll reset it for you, it’s good, off you go again!”. Noooo it was NOT good, changing into first from 5th at 100Kph then neutral. Got the “incorrect rating in 5th” fault. Transmission specialist on phone assured the mechanic all was fine with his work, must be electronic. EVERYTHING was then reset, car taken by them to Ford dealer, fuel system overhauled, control modules changed, gear selector changed… nothing. I was starting to sweat, if it was an unrelated fault, I would be up for $$$$. I trawled KZfaq and found THIS!! I immediately sent it to the mechanic and they agreed, and told the transmission specialist to take the box back and “find a fault or they could keep it and refund the cash paid”. The transmission specialist took it apart and reluctantly did your test, and FOUND THE CRACK! All the clutches needed replacing again, my mechanic had spent 26hrs on it and over 400km of driving. They were pretty stoked to have seen your presentation. Buy you a beer or two, heck, a carton of them, if you’re ever in Western Australia!! Well done, really happy with you. Unbelievable to find this, and so well presented. Keep it up!! P.S. Unfortunately I don’t think the transmission specialist and my mechanic are friends now… as they figure out who is gonna sort the $3k of “problem solving” that went on!

very infirmative-- thank you so much.

Thank you for sharing ... Very helpful

Wish we had a mechanic like u at our ford dealer.

When I was a tranny tech at ford I’ve actually seen that piston in overdrive cracked but it would only act up hot and it would fall on its face when going into fourth, tore it apart twice in order to find that problem

Great catch for sure. That could have been easily missed and you be pulling the transmission back out. That really could get a guy go down a rabbit hole and get all turned around.

I have a 2011 f150 6R80 290000+ miles. New clutches, seals from WIT, oem front pump, torque converter and valve body. Problem I'm having is a squak noise on 3-4 and 6/4/5 to 3 down shift. Any ideas would be greatly appreciated. Also it feel like torque converter shutter under light acceleration 35-50 mph.. Thanks again

i have a problem of my 6r80 ford ranger 3.2 desiel engine if cold running is very good all shifting is good but if i reach the 85° to 92° heat and overtake another car i feel the car same horse inside

Good find, definitely an easy one to overlook if air checking fast.

My Gen 2 6R80 with only 1600 miles on it after a rebuild, flared 300rpm from a 5-6 gear shift while just cruising. When engaging into D from Park, the tranny goes into 2nd gear, and then 5th gear. This sequence takes as long as 7-8 seconds as well. No codes or wrench light. Reverse engages perfectly fine. I swapped a new valve body/leadframe, and no change.. I'm thinking something is going on with the forward (A) drum assembly???

Hi bro. I loose reverse on my 6R80 when is hot. I have not codes. Excuse for my bad English.

What year vehicle was that transmission out of?

Great find. Any idea why it cracked? Google search shows this may be a more common 6R80 issue.

Hi, I've got a 2016 F150 with 5.0 w/ 99k miles on it. My torque converter went out about 10k miles ago and I had it replaced. Transmission tech checked everything out while he was in there and said everything looked good. He replaced the fluid and filter also. Now, I've got the 5-3 "Squawk" happening. The first time it did it was shortly after the repair. Currently, just about everytime it shifts from 5 to 3 it squawks. I just ordered a tube of the XL-16 6R ATF Additive. In your experience, is the additive going to fix the Squawk for good? Trying to determine whether or not to trade it in. Thanks!

gracias hermano por tu informacion

Wuddup brother Hey what's the most difficult transmission to work on in your experience? Thanks

Una pregunta sobre cambiar el conductor plate en esta trasmission se nesecita programar ?

I have a question not directly related. At 12:08 I noticed the snap ring. I wonder if you would share the type and brand of pliers you use to remove this type of snap ring? I encounter this type rebuilding hydraulic cylinders and recently had a large one that my little pliers were not large enough nor supplied the force needed to open the snap ring enough to remove and replace it. I can find the large, ratcheting type that use a pin tip but not for this type snap ring. Or maybe any of your subscribers that might be able to help?? I have searched everywhere I know and the Knipex 45 21 200 is the closest I can find but I need longer handles.

Hi Hiram how can I get in contact with you or your shop or you have other social media?

Do you think this transmission is tough enough for a F150 5.0 V8 engine if you want to tow with it?

I've got P07AA

Where are you located

معلومه جديده 👍👍

Cracked drums…..dang fords. I cracked one in my 5R110 -coast clutch- They need to use real steel drums and not the stamped pot metal garbage…..imho