Rebuilt transmission concerns - JeepForum.com
 
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post #1 of 6 Old 02-14-2002, 02:33 PM Thread Starter
damonejeep
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Rebuilt transmission concerns

I recently had my trans. over haulded. I have been driving it for 2 weeks now and the problem does not seem to be gone. Second and third gear were difficult and sometimes impossible to get into. For the first 10 minutes of driving, second gear is almost impossible to get into and third gear is difficult once in a while.

Is this normal for a rebuild tranny? Do I need to take it back?


Andrew
94 4.0L YJ, 31x10.5 ProComp MT's, 3.5" BDS, lockers and 4:56 gears to come!
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post #2 of 6 Old 02-14-2002, 04:14 PM
Bob K
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That often happens after a rebuild due to the new gear oil being so thick. It gets easier to shift after the oil warms up and thins out. You can either:

-drive it for a while and see if it gets easier.

-replace the trans oil with ATF. this brings better shifting, but probably increased wear.

This is all assuming the rebuild was done right by a reputable shop. It wouldn;t hurt to aske them to test drive it and give an opinion.

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post #3 of 6 Old 02-15-2002, 09:45 AM Thread Starter
damonejeep
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Thanks Bob K. ATF, I assume is automatic tranny fluid? What makes then different from manual tranny fluid? Just curious.

If I stick with Manual tranny fluid, will this difficulty perisit in shifting?

Thanks for the advice.

Andrew
94 4.0L YJ, 31x10.5 ProComp MT's, 3.5" BDS, lockers and 4:56 gears to come!
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post #4 of 6 Old 02-15-2002, 09:51 AM
OldJeepguy
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Quote:
Originally posted by damonejeep:
Thanks Bob K. ATF, I assume is automatic tranny fluid? What makes then different from manual tranny fluid? Just curious.

If I stick with Manual tranny fluid, will this difficulty perisit in shifting?

Thanks for the advice.
ATF is a thinner viscosity (10 - 20 wt.) than gear oil that is routinely 75 - 140 wt.
You may want to try running ATF for a month and as the trans breaks in, switch back to the recommended gear lube.
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post #5 of 6 Old 02-15-2002, 09:56 AM
JeeperJay
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I just put in a rebuilt AX-5 tranny in my jeep and I'm having the same problems. Its quite hard to shift when its cold, but after a few miles it loosens up. The problem is definatly the fluid. Check your owners manual it may have a few fluid alternatives for warm and cold weather applications. If not then just change to a slightly lighter weight gear oil. And as mentioned earlier ATF is also a alternative but it may increase wear slightly in a manual tranny.

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post #6 of 6 Old 02-15-2002, 10:18 AM Thread Starter
damonejeep
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Great. Thanks for the advice guys.

Andrew
94 4.0L YJ, 31x10.5 ProComp MT's, 3.5" BDS, lockers and 4:56 gears to come!
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