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Old 09-18-2012, 08:23 PM   #1
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NSG-370 Transmission Problem/Question

I ( I bought, my daughter drives) have a 2006 with 65K miles. My daughter used it mainly for mud and now first through third gear whine like a little baby all the time. 4th is not so bad. 5th and 6th are perfectly quiet. I'm tired of power washing mud from places that should not get muddy! I will be converting it to climbing setup but want to get some input about the transmission. I want to buy a new one because I'm always worried about the word "rebuild". Has anyone had experience with correcting whining gears? I'm not interested in pinching pennies. I want to get the best and most reliable transmission fix I can before setting it up for climbing. I plan on breaking things on the rocks. I don't want to worry about the transmission.

currently 4" lift w/35s, split yoke, 200amp alt., dana 44 Rear, high pinion 30 up front.

Soon to be added, OX lockers front/rear and BDS long arms, 5 point harness seats.

My Jeep is a 2012 COD MW3. 2"lift 35s. She needs to keep up with me on the rocks!!
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Old 09-18-2012, 10:08 PM   #2
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If it's been in the mud & water has the transmission fluid ever been changed? It might have water inside?

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Old 09-19-2012, 09:23 PM   #3
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Yep its been buried in the mud and has been swimming many times. I will start there and then see what happens. thx
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Old 09-25-2012, 09:32 AM   #4
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Not familiar with transmission internals. First through fourth grind while 5th and 6th are perfectly quite. Could it be a bearing that is unique to the first 4 gears? Thx
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Old 09-25-2012, 12:09 PM   #5
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Quote:
Originally Posted by trc View Post
Not familiar with transmission internals. First through fourth grind while 5th and 6th are perfectly quite. Could it be a bearing that is unique to the first 4 gears? Thx
I would certainly change your fluid first, and then see how your tranny reacts. You mentioned you want to change to a climbing setup. Like rock climbing? You might be looking at a manual to auto swap.
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Old 09-25-2012, 12:20 PM   #6
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I'd drain the existing fluid, and refill with synthetic, Amsoil (or Royal Purple) Synchromesh. Check the tranny for a vent/breather, and fabricate an extended breather tube to a safe, dry spot up under the dash.

Let us know if the fluid swap works.

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