Dif and Tcase fluid change

[Desert Dan]

Oops

I missed the t-case part. Is it for the 4:1 T-case or all T-cases

[f5fstop]

All T-cases. The end drive-line angle was different than design, by just enough to warrant some extra fluid. A problem COULD occur due to the lack of this small amount of fluid. However, when they first sent out the bulletin, the requirements for a problem to occur would almost mean the t/case was in 4x4 LO Lock for a continuous 500 miles while climbing.
Almost impossible, but to be safe and yes, cut any future warranty, they decided to add the extra fluid.
Supposedly there was a change to be made to the case or to the shift fork. So far, I believe I have totally confused the t/case engineer. He appeared to be caught on the procedure versus the blue dot versus the bulletin. To give him credit, he just took over this part. So, he is doing some research.
He is also checking into some POSSIBLE changes that may have been made to the front differential (HERE THAT BEBE?).

[f5fstop]

Here is the scoop?.
If your vehicle was produced manufactured prior to and including VIN5GTDN136968105387, when you do a t/case fluid change, you should fill the t/case at the fill hole, and when fluid starts to run out, re-insert the fill plug and torque to 18 lb-ft (25 N?m). Then remove the connector from the speed sensor, and remove the speed sensor, then add an additional 8.45 oz (250 ml) of Dexron III trans fluid into the t/case via the speed sensor hole.
Then re-install the vehicle speed sensor and torque to 13 lb ft (17 N?m), and reconnect the connector.



If your vehicle was manufactured after VIN5GTDN136968105387, and there is a sticker on the rear housing of the t/case that states add extra fluid to the t/case via the speed sensor, then add the extra fluid.

If you vehicle was manufactured after VIN5GTDN136968105387, and there is no sticker on the t/case, and there is a distinctive BLUE DOT on the housing, then o not add extra fluid via the vehicle speed sensor hole. The fill hole has been raised to allow for the additional required fluid.

Do not confuse the green (or sometimes) blue line that is near where the front and rear cases fit together. This line is added by the person who torques the t/case bolts and is used for quality control to verify bolts were torqued.

[ziemann]

BUMP-

Hi folks-

I rarely post, and today ran across this again as a part of my search, SO I thought it would be worthy of a bump-

I am glad I found this. I happen to be one of those that is after the VIN number but has the sticker on the transfer case....thus I need the extra ATF.

I am doing my first fluid replacement at 53,000 miles....

Anyone have an issue with me replacing my transfer case ATF with Amsoil Synthetic ATF?

[RubHer Yellow Ducky]

Originally Posted by ziemann

BUMP-

Hi folks-

I rarely post, and today ran across this again as a part of my search, SO I thought it would be worthy of a bump-

I am glad I found this. I happen to be one of those that is after the VIN number but has the sticker on the transfer case....thus I need the extra ATF.

I am doing my first fluid replacement at 53,000 miles....

Anyone have an issue with me replacing my transfer case ATF with Amsoil Synthetic ATF?

I'm lifting a Amber Bock Draft to you...ICE COLD of course

Your one of the few who understand the word SEARCH...

Congrats

[NEOCON1]

Originally Posted by RubHer Yellow Ducky

I'm lifting a Amber Bock Draft to you...ICE COLD of course

Your one of the few who understand the word SEARCH...

Congrats

X2 and not a pad-a-holic like the rest of us

Now I'm getting thirsty...