Gear Lube
All Star
Joined: Aug 2005
Posts: 939
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From: West Of St Louis, MO
RE: Gear Lube
If you can't find Red Line - I used Mobil 1 75W 90. If you have a limited slip rear end, Auto Zone has some "friction additive" in a tube (I can't remember the name of it) that is on the shelf next to the gear lube. I heard you didn't need it with Mobil 1, but I put a tube in anyway. You will also need some red gasket sealer to form a new gasket on the rearend covers. Don't waste your time looking for a gasket like I did....there isn't one. Just use red gasket sealer.
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Joined: Jan 2004
Posts: 12,942
Likes: 308
RE: Gear Lube
ORIGINAL: Racinfan83
If you can't find Red Line - I used Mobil 1 75W 90. If you have a limited slip rear end, Auto Zone has some "friction additive" in a tube (I can't remember the name of it) that is on the shelf next to the gear lube. I heard you didn't need it with Mobil 1, but I put a tube in anyway. You will also need some red gasket sealer to form a new gasket on the rearend covers. Don't waste your time looking for a gasket like I did....there isn't one. Just use red gasket sealer.
2001 Ram 1500 4x4 5.2 slip o matic
K&N Filter, Flowmaster 40 w/dual 2 1/4 outs
Fastman 50mm Throttle Body
Mobil 1 Synthetic Oils
Problems: Many! 2 Tranny Rebuilds 40,000 & 60000
Brake Rotors, o2 sensor, Charcoal canister, TPS, Axle Seal, CV Jo
If you can't find Red Line - I used Mobil 1 75W 90. If you have a limited slip rear end, Auto Zone has some "friction additive" in a tube (I can't remember the name of it) that is on the shelf next to the gear lube. I heard you didn't need it with Mobil 1, but I put a tube in anyway. You will also need some red gasket sealer to form a new gasket on the rearend covers. Don't waste your time looking for a gasket like I did....there isn't one. Just use red gasket sealer.
2001 Ram 1500 4x4 5.2 slip o matic
K&N Filter, Flowmaster 40 w/dual 2 1/4 outs
Fastman 50mm Throttle Body
Mobil 1 Synthetic Oils
Problems: Many! 2 Tranny Rebuilds 40,000 & 60000
Brake Rotors, o2 sensor, Charcoal canister, TPS, Axle Seal, CV Jo
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Joined: Jun 2005
Posts: 382
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RE: Gear Lube
I put AMSoil 75w90 for LS rear-ends in mine. Seems to be great so far, 'course my friction clutches are blown up so my rear isn't quite as LS as it should be (gotta get that stuff from randy's one of these days, just don't want to waste the fresh fluid that's in there).
All Star
Joined: Aug 2005
Posts: 939
Likes: 0
From: West Of St Louis, MO
RE: Gear Lube
Hey Steve00, I still have 35,000 miles on the 6 yr 100,000 powertrain warranty I got when I bought the truck new after 9-11. I figure Dodge will get to rebuild it one more time at least. I would like to look into a shift kit, but I don't want to void the warranty. I put a cooler on it, maybe that will help. Thanks for the link!