what kind of oil to use in difs and trans - JeepForum.com
 
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post #1 of 5 Old 07-11-2007, 06:22 PM Thread Starter
$300xjwith250k
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1991 YJ Wrangler 
 
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what kind of oil to use in difs and trans

it is a 94 xj stick stock difs and trans so what type of oil to use ??

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post #2 of 5 Old 07-12-2007, 10:16 AM
Burbo
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If you have open diffs then regular gear lube should be just fine for the axles. If you have limited slip then you will need to pick up lube that has the additives for limited slip. It should say on the bottle. As for the trans, if you pull the inspection plug you can check to see if it runs gear lube (brownish and thick) too or trans fluid (trans fluid should be red an thin). I believe that it runs trans fluid. Just pick up a couple of quarts of auto trans fluid and you should be fine.

I can never find time to do it right the first time, but I always find time to do it again!
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post #3 of 5 Old 07-12-2007, 06:25 PM
cowpie01
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Quote:
Originally Posted by $300xjwith250k
it is a 94 xj stick stock difs and trans so what type of oil to use ??

No owners manual? The diffs should use a 75w90 in both diffs unless towing then use a 75w110 or 75w140 in the rear. A good synthetic type gear oil will help. Reduced friction and will usually run up to 50F cooler more or less.

Changing out the diffs? Use www.lubelocker.com gaskets to make the job a more pleasant experience.

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post #4 of 5 Old 07-13-2007, 06:45 PM Thread Starter
$300xjwith250k
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how much in the trans ?
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post #5 of 5 Old 07-13-2007, 06:52 PM
curtjames37
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Quote:
Originally Posted by $300xjwith250k
how much in the trans ?
Will take about 4 quarts for drain and refill assuming you have an automatic. Use Dexron III only.
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