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Just changed out rear axle gear oil 75k, 85w140 royal purple
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=54732		 Page 1 of 1
Author:  kiasoul [ Thu Aug 05, 2010 4:16 pm ]
Post subject:  Just changed out rear axle gear oil 75k, 85w140 royal purple
Seemed alot thicker hope I did good. Royal Purple states no limited slip additive is needed allready in fluid.
Author:  BVCRD [ Thu Aug 05, 2010 4:53 pm ]
Post subject:  Re: Just changed out rear axle gear oil 75k, 85w140 royal pu
Is there a Liberty made that needs the additive? I haven't heard of any.
Author:  tjkj2002 [ Thu Aug 05, 2010 4:57 pm ]
Post subject:  Re: Just changed out rear axle gear oil 75k, 85w140 royal pu
BVCRD wrote:
Is there a Liberty made that needs the additive? I haven't heard of any.

Yes if you have the factory trashloc,only for '02-'05's.
Author:  FastSRT8GC [ Thu Aug 05, 2010 5:04 pm ]
Post subject:  Re: Just changed out rear axle gear oil 75k, 85w140 royal pu
I just changed mine today. 61k and I had a shudder from a stop that would last a few seconds. It now seems to be gone.
Author:  kiasoul [ Thu Aug 05, 2010 6:36 pm ]
Post subject:  Re: Just changed out rear axle gear oil 75k, 85w140 royal pu
trac loc for jeep is perfect for me. I dont offroad with liberty lol thats what rubicons are for or old xj. Love my LSD in nissan frontier! Put a detroit locker in stock kj would be crazy lol axle snapping

Do you think 85w might be a problem? Didnt realize royal purple made both 75w140 and 85w140 obviously jeep specs 75w140 for towing. It's like molasses
Author:  CATCRD [ Thu Aug 05, 2010 6:44 pm ]
Post subject:  Re: Just changed out rear axle gear oil 75k, 85w140 royal pu
The 75W will flow better at cold temperatures. If you don't live in a cold climate, it shouldn't be a problem for you. Usually the 75W is the synthetic version if the maker has both syn and conventional varieties, because synthetics have a more stable viscosity over temperature changes. (Higher viscosity index)
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