No thats not all, i gotta do the same for my T-Case metal shards are in its oil... 90w good for it too?tupton said:Lucky water in the diff was your only problem. No, don't cap the vent tube. I run mine all the way up as high as it will go. When you add new oil, just fill it to where oil just starts to come out of the fill hole and you will be ok.
DO NOT USE GEAR OIL FOR THE T-CASE. Your Owners manual has all the fluids recomended and type in it. ATF, the same stuff you use for your transmission, goes in the T-case. Mercon/Dexron IIICodyB said:No thats not all, i gotta do the same for my T-Case metal shards are in its oil... 90w good for it too?
The oil wasn't leaking, just when I pulled the plug, it came out because of so much water entering into the diff. I'm not having trouble with leaks from that end. But after I got the driver side tire off, I saw oil had slung all over the place under there. I replaced the two seals after pulling the planetary out and cleaning up everything inside as good as I could while laying under a vehicle. popped the new seals in, replaced everything, and used a gasket from Advanced Auto Parts. I used 80w-90 gear oil. No RTV mess or anything. All done, now to just see how she holds up... And this time, im gonna try to avoid the big water holes...Begster said:No, the reason you can't seal up the vent on the axle is because as the gears turn, the fluids heats up, and it expands, and the pressure needs somewhere to go.
DO NOT USE GEAR OIL FOR THE T-CASE. Your Owners manual has all the fluids recomended and type in it. ATF, the same stuff you use for your transmission, goes in the T-case. Mercon/Dexron III
If you keep having trouble with oil leaking out of the fill plug after you refill it, (as stated before, only fill the oil up to the point where it startes leaking out the hole then plug it) you could maybe try some of that white pipe tape that goes on the threads of faucets and such to prevent leaks.
This thread is NINE YEARS OLD.
Other than that...
Both weights are fine. 75w140 would be preferred if you do a lot of towing. I run 80w90 front and 75w140 rear since I tow a good bit.
for the first change use cheap oil. store brand.run a couple days then change again to a better quality of oil. and just because you got it in the water doesnt mean the diff is contaminated. if the oil is clean no worries. if it is foamed out chocolate looking junk then clean it all out.You might have to change it more than once to make sure you got all the water out. As suggested by Rich 74-90 wt oil should be fine depending on the mileage on that set of gears higher requires a heavier (higher numeric) weight oil. Extend the vent up to the highest point on the firewall and you should be fine on that.