Recommendations for ATF and Diff fluid?

[Chiketkd]

I'm doing my trans and diff swap this Friday, and wanted to know what recommendations people have.

I'm not looking to use synthetic fluids, but want opinions on the regular fluids I can pick up from my local Autoparts Store (Advanced, Autozone, etc.)

Thanks!

-Chike

[Whoru465]

If you do a search there is an array of opinions. Trust me. I'm still confused and looking for ideas...







-Mike

[SVXRide]

Chike,
I just picked up some of the Lucas 80/90 diff fluid at Advanced Auto. They only had one bottle, so I have to drop by again tonight to get 2 more (not having checked the shop manual to see exactly how much fluid the diff holds...)
-Bill

[Chiketkd]

Thanks Bill. I'll be picking my fluids up on Thursday. So Lucas 80/90 for the diff. What do your recommend for the ATF? Valvoline?

-Chike

Originally posted by SVXRide
Chike,
I just picked up some of the Lucas 80/90 diff fluid at Advanced Auto. They only had one bottle, so I have to drop by again tonight to get 2 more (not having checked the shop manual to see exactly how much fluid the diff holds...)
-Bill

[SVXRide]

Chike,
The Lucas diff fluid says it's good for LSDs and I've had good success with their oil additive.
ATF fluid -- I've flushed all the synth out of my trans! I'm now using Valvoline ATF for high mileage transmissions....
-Bill

[Chiketkd]

Awesome. I'll pick that up as well...

-Chike

Originally posted by SVXRide
I'm now using Valvoline ATF for high mileage transmissions....
-Bill

[Whoru465]

While I'm thinking, might I ask you guys how many quarts of ATF the tranny takes? I am still without a manual. Thanks.

[Chiketkd]

If I remember correctly, the 4EAT takes about 10 quarts of ATF. However, if you drain it, you'll probably only need to replace about 6-7 quarts.

-Chike

[Whoru465]

Thanks

[dcarrb]

Actually, the pan doesn't quite hold four quarts, as I recall. Just measure what you drain and refill with that amount, assuming your transmission is properly filled.


dcb

[Chiketkd]

Yes, the pan holds ~4 quarts, but the entire trans will have about 10. If you drain the trans for only 10 minutes, you'll probably only collect about 4 qts, but if you let it drain for a good 1/2 hour, 6-7 qts should be collected.

-Chike

P.S. It's always a good idea to put back the same amount of ATF that you drained out.

Originally posted by dcarrb
Actually, the pan doesn't quite hold four quarts, as I recall. Just measure what you drain and refill with that amount, assuming your transmission is properly filled.


dcb

[Bobb]

Hi Chike, I've used Mobil 1 ATF in my trans since it was replaced a couple of years ago. At the same time I replaced the diff's fluid with Mobil 1 diff juice. As for engine oil I've gone over to max/high milage oil. One of which now has synthetic. I don't remember whom it was. I think as long as you use a high quality product you will be okay. Take care and happy draining. BOBB

P/S In the owners manual it says not to use 5-30 oil if you drive a lot of hi-speed miles. However this was based on oil that was available 14 or 15 years ago, so it may not still hold true. "B"

[dcarrb]

Originally posted by Whoru465
While I'm thinking, might I ask you guys how many quarts of ATF the tranny takes? I am still without a manual. Thanks.

Transmission spec per the owner's manual: capacity 10 quarts U.S.; drain/refill 2.6 to 3.2 quarts.


dcb

[svxfiles]

The front diff holds 1.3 us quarts,
the rear diff holds .8 us quarts.
Mobile 1 synthetic is only $8.82 a quart at my local Advance store. I went with that, it's cheap insurance. Tom

ps; the book does say 10 us quarts in the trans. Dextron 2.

[Bobb]

Hi everyone, Dextron 2 has been upgraded to Dextron 3. It is backwards compatible so have fun,and take care, BOBB