Transfer case fluid.

[GaryHayes]

Want to change transfer case fluid after140K mi. on 2010 3500 manual transmission. Owners manual. says either ATF+4 or NVG246 if transfer case is NVG 246. Queston is, how do you know what type of transfer case this truck has?

 

[Newsa]

Want to change transfer case fluid after140K mi. on 2010 3500 manual transmission. Owners manual. says either ATF+4 or NVG246 if transfer case is NVG 246. Queston is, how do you know what type of transfer case this truck has?

If I'm not mistaken.... all 4th gens have the Borg Warner tfer case. I wouldn't use ATF. The dealer has a specific bw fluid (part number starts with bw... I think bw-44?) that seems to have extra slippery additive. Or just go with a synthetic manual transmission lube?

https://www.cumminsforum.com/forum/4th-gen-powertrain/2145658-bw-44-46-transfer-case.html

 

[NIsaacs]

The BW case arrived in mid '12 so it should be the NV271 or 273.

Nick

 

[JR]

BW44-44 is what's called for, and it's a Mopar only fluid.
They don't offer a spec to meet so recommending anything else is speculation but Valvoline makes a transfer case specific fluid that meets Fords XL-12 requirement.
I have wondered if that would be sufficient.

 

[JR]

The BW case arrived in mid '12 so it should be the NV271 or 273.

Nick

Good call, totally missed the year. Reading comprehension is a wonderful thing!

 

[Ozymandias]

Also there is a Tag on the TC itself that tells its Name.

 

[GaryHayes]

Thank you, gentlemen for your input. Ozymandia is correct. After scrapping off debris, ect. there is a round tag on the back of tc. says: New Process Gear: 273 D, Ass'y # 52123? 25AB, Serial #: 12-22 09-3, ratio: 272, made in Syracuse, New York. Still, don't know what make. I'm guessing that it is, as Nick suggest, i a NV 273. Some earlier post say, just put in ATF-4. This t.c. doesnt't work that hard, very little 4 wdr. time & equipped with front free spin hubs. BUT, this fluid needs to be changed, & am still not sure what to put in it. Any suggestions would help. Thanks in advance

 

[JohnWelch]

ATF+4

 

[Cummins12V98]

I used AMZ/OIL Universal ATF IN MY 98 still going strong at 400k.

 

[GaryHayes]

O.K. got it. I'm going with JohnWelch & Ozymandias is O.K. with . ATF -4 it is!! Thanks to all of you. end of thread

 

[jhenderson]

Thank you, gentlemen for your input. Ozymandia is correct. After scrapping off debris, ect. there is a round tag on the back of tc. says: New Process Gear: 273 D, Ass'y # 52123? 25AB, Serial #: 12-22 09-3, ratio: 272, made in Syracuse, New York. Still, don't know what make. I'm guessing that it is, as Nick suggest, i a NV 273. Some earlier post say, just put in ATF-4. This t.c. doesnt't work that hard, very little 4 wdr. time & equipped with front free spin hubs. BUT, this fluid needs to be changed, & am still not sure what to put in it. Any suggestions would help. Thanks in advance

NV was a slight error. It’s NP or as your tag says New Process. They ceased production in mid 2012. Probably why Ram went to BW.

 

[Newsa]

https://www.allpar.com/mopar/transmissions/NVG-history.html

 

[gsbrockman]

I used AMZ/OIL Universal ATF IN MY 98 still going strong at 400k.

I stuck with the OE BW/MOPAR fluid in my 2014 and it was fine through 362k miles when I traded......all without ASSSSSSSS/OIL.

 

[Newsa]

I stuck with the OE BW/MOPAR fluid in my 2014 and it was fine through 362k miles when I traded......all without ASSSSSSSS/OIL.

I think that BW fluid is way better than ATF+4.
It feels slicker and smells like it has additives that wouldn't be put in ATF.

 

[Cummins12V98]

I think that BW fluid is way better than ATF+4.
It feels slicker and smells like it has additives that wouldn't be put in ATF.

BUT, have you given the AMZ/OIL the "SLICKER" SMELLER" test???

 

[Cummins12V98]

I stuck with the OE BW/MOPAR fluid in my 2014 and it was fine through 362k miles when I traded......all without ASSSSSSSS/OIL.

I'm thinking my 98's been in and out of 4wd far more times than your highway towing machine.

 

[Newsa]

BUT, have you given the AMZ/OIL the "SLICKER" SMELLER" test???

BUT, have you given the AMZ/OIL the "SLICKER" SMELLER" test???

No, but the BW fluid is designed for a transfer case with just splash lubrucatuon. No clutches or pumps or valves to gunk up.

ATF is designed for something completely different...... an automatic transmission that probably wouldn't like the additives in the BW fluid.

Nothing against Amsoil. But I think I will use the correct fluid.

 

[gsbrockman]

I'm thinking my 98's been in and out of 4wd far more times than your highway towing machine.

As always......I was readily expecting your “one up”.

 

[Cummins12V98]

No, but the BW fluid is designed for a transfer case with just splash lubrucatuon. No clutches or pumps or valves to gunk up.

ATF is designed for something completely different...... an automatic transmission that probably wouldn't like the additives in the BW fluid.

Nothing against Amsoil. But I think I will use the correct fluid.

Look it up on the AMZ/OIL site it will tell you ATF.

 

[Cummins12V98]

As always......I was readily expecting your “one up”.

Just the FACTS, SIR!!!