If it freezes in the TC it will also freeze in your engine, which it doesn't so you're alright with it.
Transfer Case Info - McRat Edition
- Thread starter SIKDMAX
- Start date
I was having a problem with the transfer case ATF oil getting too hot and puking out the overflow while I was towing heavy. I replaced the ATF with 3 quarts of Mobile1 Syn 5W-30 motor oil and have had no more issues in over 30-40,000 miles. No more puking!
ok so when i changed my clutch I put in mobil1 synthetic 0-40 in my TC but the evap/vaperization thing got me thinking that the manual trans probly gets hotter so why doesnt any one run the motor oil in the trans???
wouldn't it be too slippery for the clutches? I was told you was a fluid that won't rust the steel pieces but something with minimal lube to help the clutches.
Just for the hell of it I tried this in the new LMM transfercase. I filled it to the fill plug then removed the speed sensor and dumped another quart. I ran it for a while it may be a coinsidance but both out put shaft seals started leaking (tail shaft & front output). The rear was worse so I replaced it there was nothing visable wrong with the seal it's possible the spring was weak but the rubber portion looked new it still had the grooves in it. I lowere the oil level to normal and the front quit for now. I have been running this oil for about 30,000 miles
No Dale I didn't change it yet. I did my front and rear diffs though with Severe Gear. I have a few days off now so if the weather holds out I will probably get it done along with the changing the ATF and spin on. I will let you know how it goes if it doesn't snow.
I did my front and rear diffs though with Severe Gear. I have a few days off now so if the weather holds out I will probably get it done along with the changing the ATF and spin on. I will let you know how it goes if it doesn't snow.
This mod was not meant for the new TC. We do not know enough about the new one. Go back to the rec. fluid.
I know but I figured I would give er hell anyways
I forgot to say I have the manual transfer case, shift lever on the floor and its a noisy bastered under a load so I figured I would give the heavier oil a try no difference in sound though. One things for sure the stock stuff was burnt after 20,000 and I checked on the 5w-30 when I drained the excess out after about 30,000 and it still looked good.
I just changed to 3 qts of Amsoil 5w30 this afternoon. I only took it for a short drive though, I will check for leaks in the A.M. This is on a 2006 with 49000km (30625 mi). To do this I removed the speed sensor at the top of the T-case, then removed the drain plug. The fluid comes out fast so be ready. After it was drained I put a little bit of thread sealer on the threads and screwed it back in. I didn't put the drain plug in too tight, just fairly snug I guess. I then pumped 3qts of 5w30 in through the speed sensor, then reinstalled and connected the wire again. The size of the drain plug is 18mm I believe, and the speed sensor is 19mm. I didn't touch the factory fill plug. Hope this helps. I would have taken pics, but I don't have a camera.