Reply With QuoteDana recommends 75w140 for "Extreme Duty," basically anything other than a dirt road. No special additives need for a locker but Limited Slip Diff's require a Friction Modifier added to ensure proper operation and reduce clutch wear.
gear oil dana 44???
im putting a rock sliders on for my diffs tomorrow. got an 04 rubicon so it has the dana 44 with lockers. just wondering what type of gear fluid to use. Options would probably be 80w90 which is recommended by owners manual for axles with no lockers, 75w140, or 75w90. I know the lockers need special gear fluid. Any suggestions?
Dana recommends 75w140 for "Extreme Duty," basically anything other than a dirt road. No special additives need for a locker but Limited Slip Diff's require a Friction Modifier added to ensure proper operation and reduce clutch wear.
THE next question is are you going with Royal Purple or ????????
Go with 75w-140. I had a difficult time finding it... ending up getting it from 2 different walmarts.
Go with 75-140 and use synthetic if at all possible. IMO I wouldn't bother with Royal Purple any expensive brand like that. If you wheel it and get water in the diff, you're just gonna need to change the fluid anyway and at those costs it gets expensive. Nobody plans to get water in the diff, but it happens. A good synthetic like Valvoline works fine.
06 LJ | 4.0L | NSG-370 | D44/D30 w/4.88's | 4.5" RE Superflex lift | 35-12.50-15 Cooper STT's on 15x10 Cragan steelies | RockKrawler X-Factor steering | Shrockworks sliders | DirtWorx bumper/tire carrier | LockRite auto locker | Midland CB w/4 ft Firefly antenna | SOLID rear diff cover | DIY thumb throttle | 750w power inverter | Smittybilt XRC8 winch ...and GROWING
http://wheelersforthewounded.org
http://www.mississippivalleyjeepers.com
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