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Metlic53
06-10-2011, 04:05 PM
I need some opinions on diff fluids. I'm going to change the fluid in the 30 and am getting ready to install an open diff 44 in the jeep. Trying to get an idea of what fluid i should put in those diffs. anyone run synthetics? anyone run dino oil?
Thanks guyz
Mudderoy
06-10-2011, 04:07 PM
I need some opinions on diff fluids. I'm going to change the fluid in the 30 and am getting ready to install an open diff 44 in the jeep. Trying to get an idea of what fluid i should put in those diffs. anyone run synthetics? anyone run dino oil?
Thanks guyz

I did the Royal Purple when I put the 4.56 gears in it. 90/135 weight, or something like that in the rear diff.
4.3LXJ
06-10-2011, 04:22 PM
I haven't tried any synthetic in the diffs. I run Amsoil synthetic in the Atlas, works well. I also run Redline high temp in the auto tranny. The transmission shop swears by it.
xj4life2
06-10-2011, 04:27 PM
I haven't tried any synthetic in the diffs. I run Amsoil synthetic in the Atlas, works well. I also run Redline high temp in the auto tranny. The transmission shop swears by it.

X2 Redline in the diffs too !!!!
Metlic53
06-10-2011, 04:42 PM
X2 Redline in the diffs too !!!!

which one for the diffs?

Redline 75W90 GL-5 Gear Oil? Or 75-140? it actually says for the jeep cherokee on the 75-140
xj4life2
06-10-2011, 07:20 PM
which one for the diffs?

Redline 75W90 GL-5 Gear Oil? Or 75-140? it actually says for the jeep cherokee on the 75-140

I use the 75w90 in mine the 75w140 would be better protection , not sure why I don't use it?? Well thanks, next time I will .
BigJeepBigJeep
06-10-2011, 11:52 PM
Remember, you can use 140 in a 90 diff but you cant use 90 in a 140 diff. Just some food for thought.

Sent from my SGH-T839 using Tapatalk
jccatt
06-11-2011, 05:48 PM
Remember, you can use 140 in a 90 diff but you cant use 90 in a 140 diff. Just some food for thought.

Sent from my SGH-T839 using Tapatalk

Cool so I dont need two bottles of diff oil
LizardRunner
06-13-2011, 01:22 PM
I have redline 75-140 in both my diffs. Had to go to the shed and check.
Metlic53
06-13-2011, 01:32 PM
Thanks, i'll go with the 75-140. i guess i need to order it, since nobody around here seems to carry it!
LizardRunner
06-13-2011, 01:36 PM
I got mine at O'Reilly, if that helps.
Metlic53
06-13-2011, 02:03 PM
I got mine at O'Reilly, if that helps.

ya i've called oreilly, auto zone, advanced auto, they don't carry redline.
4.3LXJ
06-13-2011, 05:28 PM
NAPA can order it. And if all else fails, Summit Racing. That is where I get my Redline as well as a local transmission shop.
Metlic53
06-13-2011, 06:44 PM
NAPA can order it. And if all else fails, Summit Racing. That is where I get my Redline as well as a local transmission shop.

sweet, i didn't even think to call napa.
XJ Rat
06-14-2011, 12:01 PM
If you regularly hit water holes you may consider running a less expensive fluid in your diffs. In my hey days I would change the diff fluid 3-4 times a year. Running Redline or Royal Purple would have gotten awful expensive.

I am still confused about synthetic in the diff. My F150 has synthetic from the factory. Yet Currie Enterprises will not warrant diff gears if it is determined synthetic was in the case. What gives???????????????
LizardRunner
06-14-2011, 12:13 PM
ya i've called oreilly, auto zone, advanced auto, they don't carry redline.

Really? wow, guess I just lucked out somehow. I went into Oreilly and told the guy I needed some rearend oil for a 95 jeep cherokee and he produced two bottles of it after about a four minute wait. He did say he owned the blue 95 out front, maybe he just had a stash or something. Good to know I can get it through NAPA when I change it next year.
4.3LXJ
06-14-2011, 12:35 PM
If you regularly hit water holes you may consider running a less expensive fluid in your diffs. In my hey days I would change the diff fluid 3-4 times a year. Running Redline or Royal Purple would have gotten awful expensive.

I am still confused about synthetic in the diff. My F150 has synthetic from the factory. Yet Currie Enterprises will not warrant diff gears if it is determined synthetic was in the case. What gives???????????????

you might also check into Amsoil. It is supposed to be completely waterproof. Theoretically, reusable after being drained and separated. I think that is one reason why Advance Adapters uses it in their tcases.
Metlic53
06-14-2011, 02:41 PM
If you regularly hit water holes you may consider running a less expensive fluid in your diffs. In my hey days I would change the diff fluid 3-4 times a year. Running Redline or Royal Purple would have gotten awful expensive.

I am still confused about synthetic in the diff. My F150 has synthetic from the factory. Yet Currie Enterprises will not warrant diff gears if it is determined synthetic was in the case. What gives???????????????

yeah, i'm not going to offroad the 97 much anymore. i'll put the cheap stuff in the 90's axles
Metlic53
06-14-2011, 04:07 PM
NAPA can order it. And if all else fails, Summit Racing. That is where I get my Redline as well as a local transmission shop.

called napa, they said they cant order it...darn :mad0029:
4.3LXJ
06-14-2011, 05:08 PM
Try Summit Racing, they have everything and for good prices.
Mudderoy
06-15-2011, 02:40 AM
Don't forget to check with our vendors! Just click "vendors" on the navigation bar above.
Metlic53
06-15-2011, 02:22 PM
Don't forget to check with our vendors! Just click "vendors" on the navigation bar above.

alright i'll ask them