15k miles Transmission drain and fill

I want to be just like you when I grow up.

 

He did know a guy that told him something once though. I was thinking by his logic maybe adding some sand in my next fluid change, you know because it helps add friction.

 

Do the 5.7 and 4.6 have the same transmission?

 

I used to work for a company that manufactured Hydrogenated Nitrile (HNBR). Extremely durable elastomer. We sent samples to Hydromatic so they could test in transmissions. It is how I met their design engineers, not manufacturing maintenance engineers but design engineers. In the end after 150K miles of simulated testing they didn't like our product. Problem was it showed zero degradation. Hydramatic in the business of selling transmissions. I wonder if they lied to me to create another transmission failure... Makes sense now.

 

No.

 

Thanks. Was wondering if the fill hole was near the same spot.

 

Maybe. I’ve seen threads of 4.7 owners putting on a cooler and it looked like the same process. Pretty sure they don’t have a dipstick either.

 

Thanks for the background, makes more sense where you're coming from. One thing that really sticks out to me is that engineers, like any other profession, there is a wide range from scary good ones to scary bad ones. Who knows where the ones that told you that fall. My opinion is that they misinformed you.

 

Reading that Wikipedia page I'm seeing two transmissions for a 2019 5.7l 4WD. The AB60E and AB60F.

AB60E has torque converter lockup in 4th, 5th, and 6th gear. AB60F has torque converter lockup in 5th and 6th gear.

I'm thinking the AB60E is for the Sequoia 4WD which has the Torsen center diff. Reason I say that is because the LC200 with 5.7l and Torsen has an AB60E.

2019 Tundra 5.7 4WD has the AB60F I think, slight difference because of the Torsen center diff.

 

I can’t find much info except this one website. Says the AB60F is for 4wd cause it has a connection for the transfer case. Not sure of it’s accuracy.

“To back up its brawny new image, a new 6–speed AB60E transmission was put behind the equally new 3UR-FE 5.7L V8 and 1UR-FE 4.6L V8. The Toyota Tundra AB60F transmission was put in four-wheel-drive models, and allowed for connection to a transfer case.”

https://www.transmissionrepaircostguide.com/ab60e/

 

Hat off to people do it every 15,000 miles and hoping your will last more than 400,000 mile. We have a member run the truck for 400,000 miles and never change out the fluid.

 

His Tundra has a factory oil cooler, that is why lasted that long with no issues, my 2007 has over 200K of abuse, no issues either

 

Exactly the whole reason I started this post and the reason I changed the fluid at 15k to begin with is to see what it looked like having gone through insane heat cycles unlike ones with a cooler that rarely see over 220. I can go over 220 just driving 65mph down the highway not towing.

 

I dont care what Mike Sweers says. IMHO is just to increase profits, not QRD, after all these are the last Tundras as we known them.

 

I’m going to follow exactly what my manual states for the simple reason that I have limited transmission knowledge and I’m going to believe the ones who wrote the manual have a lot.

 

In general, for the average user, I think this is the best advice. Follow the manual intervals, use OEM or higher quality fluids. I don't think any harm comes from using the special operating conditions intervals even if driven normally either.

I wish we had fluid analysis from samples pulled at 60, 100K to see how they hold up.

 

No no no no no...

 

As long as they're not the same dudes that believe in "lifetime fluid", then you should be fine...

 

Do we not have intel on the fluid from long drain intervals on Tundras?

 

Some people just do not understand that certain threads are not the appropriate context for anything resembling common sense.

 

Thing is, transmissions that have never been serviced will continue to work for an undetermined amount of time and being Toyota... that could be along time. However, the longer you wait to service it, the most likely it is to slip after doing it.

WS is cheap, transmissions are not, so that's one a hell of an experiment if anyone's willing to run his/her Tundra without ever servicing the tranny

 

I agree. I never bought into lifetime anything. I would just like to see how bad the fluid is at Toyotas recommended interval.

 

No. Fill for A760 is located on the tail shaft housing.

The funnel and hose method from the sill could be made to work after a fashion, using 2-3 people. I decided it will be tricky to manage without wasting a couple of quarts of fluid in the tube low spot (transmission fill port higher than frame), with one quart spilled removing the tube.

 

Ah, good to know. Thanks. Looks like pumping it in is the only option.

 

A guy I knew in high school couldn't get a prom date. That sounded like his prom night.

 

Actually, I should clarify my answer if you plan to use that info.

For A760E (2WD), fill port is in the tail shaft housing on the passenger side.

For A760F (4WD), fill port is in the adapter (Edit: driver side) between transmission and transfer case. It will be a 24mm? hex head bolt right at the (Edit: transmission case) flange. The bolt head will have the letters "WS" for World Standard ATF.

 

Thanks. I didn't see one video on the fluid change with a 4.6L, I would have been looking for a while.

 

Alright, one more try to get this right.

The A760F fill port IS in the adapter housing, BUT ON THE DRIVER SIDE.