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Re: GL-4 or GL-5 Gear Oil? [Re: Kevin C] #1078603 08/01/15 10:02 PM
Joined: Mar 2005
Posts: 1,006
P
pcc Offline OP
Body Damage is Cool
Quote
In my experience, Mobil 1 that says "for LSD units" will chatter. My testing showed that Redline GL5 with LSD additive did not.


Did the rear diff today with the Redline 75w90 GL-5. No chatter/shudder. Will do the front and transfer case as well with proper Redline.

Thanks for the help.


92 Montero LS 3.0L V6 Auto, Stock, Original owner, 185,800K miles
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Re: GL-4 or GL-5 Gear Oil? [Re: pcc] #1078604 08/07/15 09:28 PM
Joined: Mar 2014
Posts: 126
AZRaider Offline
Wheeler
Do you guys have the same recommendation for an 87 with open diffs? And what about the transfer case?


1987 Dodge Raider, 2.6L, manuel, bone stock with a whole lot of new and refurbished parts. Brought back from the dead after 12yrs.
Re: GL-4 or GL-5 Gear Oil? [Re: AZRaider] #1078605 08/08/15 12:46 AM
Joined: Mar 2005
Posts: 1,006
P
pcc Offline OP
Body Damage is Cool
If it's Redline for transfer it's MT-90 GL-4 75w90 or if the 87 recommends only a 75w85 it's MT-85 GL-4.


92 Montero LS 3.0L V6 Auto, Stock, Original owner, 185,800K miles
Re: GL-4 or GL-5 Gear Oil? [Re: pcc] #1078606 08/30/15 06:31 PM
Joined: Mar 2005
Posts: 1,006
P
pcc Offline OP
Body Damage is Cool
Finished the front diff (GL-5) and transfer case (GL-4), all with Redline.

I forgot what great oil Redline is. The transfer case is quieter and shifts very smooth. And as mentioned no rear diff LSD chatter.

Redline is expensive but the gear oil is in there for 30K. Easy to get on Amazon. I'll still stick with Mobil1 for engine oil.


92 Montero LS 3.0L V6 Auto, Stock, Original owner, 185,800K miles
Re: GL-4 or GL-5 Gear Oil? [Re: pcc] #1078607 08/30/15 09:21 PM
Joined: May 2000
Posts: 6,132
K
Kevin C Offline
Trail Leader
****
Quote
Finished the front diff (GL-5) and transfer case (GL-4), all with Redline.

I forgot what great oil Redline is. The transfer case is quieter and shifts very smooth. And as mentioned no rear diff LSD chatter.

Redline is expensive but the gear oil is in there for 30K. Easy to get on Amazon. I'll still stick with Mobil1 for engine oil.


Thats been my experience... I hate to sound like a sales guy for them, but their gear oil works really well.


87 Turbo Intercooled Raider, roller cam, torsen rear diff, LSD front diff, lockup auto with modified converter, V6 brakes, low transfer case gears...
Re: GL-4 or GL-5 Gear Oil? [Re: Kevin C] #1078608 08/31/15 02:00 AM
Joined: Oct 2006
Posts: 391
dannytuned Offline
Mudrunner
Quote
Quote
Finished the front diff (GL-5) and transfer case (GL-4), all with Redline.

I forgot what great oil Redline is. The transfer case is quieter and shifts very smooth. And as mentioned no rear diff LSD chatter.

Redline is expensive but the gear oil is in there for 30K. Easy to get on Amazon. I'll still stick with Mobil1 for engine oil.


Thats been my experience... I hate to sound like a sales guy for them, but their gear oil works really well.


I'm gonna have to break down and order some. Can't find GL-4 locally so amazon here I come!

<img src="/forums/images/graemlins/cheers.gif" alt="" />


2001Sport 3.0-Headers-Cage-RoofChop-NP231/D300-D44/ARB-Ford9/Yukon/3Link-37's+H1's-PSC Assist-108:1
Re: GL-4 or GL-5 Gear Oil? [Re: AZRaider] #1078609 09/02/15 06:38 PM
Joined: Dec 2007
Posts: 2,331
Mudraider Offline
Body Damage is Cool
Quote
Do you guys have the same recommendation for an 87 with open diffs? And what about the transfer case?


If you have an 87 with open diffs, I recommend you find an LSD rear axle.

<img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" />

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