30K fluid changes

broncsrule · **Posted:** Thu Aug 10, 2006 10:58 pm

Gonna be changing out T-case, diffs, manual tranny fluid very soon. Is the tranny procedure as easy as "drain and refill".

MikeD0106 · **Posted:** Fri Aug 11, 2006 2:39 am

would you like someone to make it more complicated? :twisted:

jeepkj02 · **Posted:** Fri Aug 11, 2006 10:20 am

I would say that is all to it. Can't make it anymore complicated.

Jeepjeepster · **Posted:** Fri Aug 11, 2006 12:27 pm

Im fairly sure with a manual tranny, the fluid does not need to be changed for along time. The tcase and diffs should be done if they never have.

nolakj · **Posted:** Fri Aug 11, 2006 2:52 pm

I'll be doing my t-mission this weekend too. Should be pretty easy.

broncsrule · **Posted:** Fri Aug 11, 2006 6:41 pm

The Haynes manual makes it sound easy....thats what worries me.

shak · **Posted:** Mon Aug 14, 2006 10:35 am

can somebody please let me know what fluids I should get for this procedure, T-case, diffs, auto tranny ? (best brand and model and how much)
Thanks

Jeepjeepster · **Posted:** Mon Aug 14, 2006 10:57 am

shak wrote:

can somebody please let me know what fluids I should get for this procedure, T-case, diffs, auto tranny ? (best brand and model and how much)
Thanks

If you have the auto, ATF +4 only in the tranny. You can also use that in the tcase. Diffs, 80w90 if you do not tow, 75w-140 syn if you do.

shak · **Posted:** Mon Aug 14, 2006 3:21 pm

Thanks jeepster, also how much of each would I be needing and also whats a good brand for each one

chefdab · **Posted:** Mon Aug 14, 2006 3:59 pm

I believe you need around 14 quarts for the transmission. I think Valvoline is the only aftermarket maker of the ATF+4 right now. The only other option is to get it from the dealer.

Jeepjeepster · **Posted:** Mon Aug 14, 2006 5:04 pm

chefdab wrote:

I believe you need around 14 quarts for the transmission. I think Valvoline is the only aftermarket maker of the ATF+4 right now. The only other option is to get it from the dealer.

I do not think he is doing a full flush, id say hes only dropping the pan. Ive heard valvoline is selling ATF +4, but Ive not seen it anywhere yet. If you cannot find it anywhere, then the dealer is the only place. You will also need a gasket/filter kit. Ive not done this change yet, so idk if you can buy it at any auto parts store or if its a dealer only item. Should need around 4-5quarts for the tranny, someone should chime in and give the aprox amount.

Not to sure on the amount for the diffs. I used castrol syn b/c I could get it in a 5gallon bucket for cheap. Valvoline, castrol, amsoil, royal purple, all good brands. Remember the friction stuff if you have a limited slip!! I believe royal purple and amsoil already have it in it.

Guyute1210 · **Posted:** Mon Aug 14, 2006 7:46 pm

Don't use royal purple, they use Teflon in their oils, and it clogs stuff. Teflon doesn't adhere to anything until around 800*F...

Get some Amsoil, contact JJsKJ, he will get you all the info you need (and more)...Amsoil has a friction modifier that you need to add if you have and LSD. Also Amsoil beats the specifications for ATF+4.

RFCRD · **Posted:** Tue Aug 15, 2006 5:57 am

Jeepjeepster wrote:

chefdab wrote:

I believe you need around 14 quarts for the transmission. I think Valvoline is the only aftermarket maker of the ATF+4 right now. The only other option is to get it from the dealer.

I do not think he is doing a full flush, id say hes only dropping the pan. Ive heard valvoline is selling ATF +4, but Ive not seen it anywhere yet. If you cannot find it anywhere, then the dealer is the only place. You will also need a gasket/filter kit. Ive not done this change yet, so idk if you can buy it at any auto parts store or if its a dealer only item. Should need around 4-5quarts for the tranny, someone should chime in and give the aprox amount.

Not to sure on the amount for the diffs. I used castrol syn b/c I could get it in a 5gallon bucket for cheap. Valvoline, castrol, amsoil, royal purple, all good brands. Remember the friction stuff if you have a limited slip!! I believe royal purple and amsoil already have it in it.

I got my Valvoline ATF+4 from Advance, also saw some at NAPA. T-case is sloppy to fill because no way to tilt the bottle. Do your diffs first and save/reuse a squeeze bottle to refill the ATF+4 going into the t-case. In the diffs, I wanted synthetic and don't tow so went with a 75W90 in both.

30K fluid changes

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