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Gear Oil? Friction Modifier?? DIFF Cover???

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Old Mar 19, 2010 | 09:21 PM
  #16  
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OAS
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Year: 1997
Model: Cherokee
Engine: 4.0
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I used a "lubelocker" gasket.
A bit costly, but reusable and no goopy rtv to scrape off.

I ran 70-90 RoyalPurple in front.
75-140 in the back.
Recomended if you tow a trailer..........and id use it just in case anyways.
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Old Mar 21, 2010 | 07:01 AM
  #17  
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From: Phoenix, AZ
Year: 96
Model: Cherokee
Engine: 2.5l I-4
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Originally Posted by DesertFox4x4
gasket and a thin layer of rtv i use either ultra black or gms (gm factory silicone, im a gm mechanic have tons of the crap) jus give it a chance to set up a bit before u put in the the gear oil. and as mentioned above friction modifier reduces friction to stop the clutches in the lsd from sticking and releasing causeing them to chatter. never heard of it in a trans and never seen a manual trans not shift cause the fluid was too slipery. syncros engauge by teeth on the blocking ring into the hub nothing to really slip to not engage unless teeth on blocking ring missing.
Don't take my word for it, look here:
http://www.redlineoil.com/Products.aspx?pcid=7

That's Red Line, very established company for their gear oils for manual transmissions
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Old Mar 25, 2010 | 12:42 AM
  #18  
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From: yakima, wa
Year: 89
Model: Cherokee
Engine: 4.7
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use "The Right Stuff" its more like the factory sealant and sets in 3 minutes. ive never had a leak when i use it. also i use lucas gear oil or 80-90 and a tube of friction modifier in all my lsds and lockers. makes it run smoother and work wayyy better
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