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reverse gear grindin.....

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Old Feb 23, 2010 | 04:21 PM
  #1  
truckntractorhick's Avatar
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From: Harleysville, PA
Year: 1998
Model: Cherokee
Engine: 4.0L I6 Powertech
Lightbulb reverse gear grindin.....

ok well as the title says my reverse gear is grindin! i always have the clutch pushed all the way in, and sometimes even tried pumpin it and that had no affect! my guess is that its bad for the gears......

*1998 Sport AX-15
Thanks in advance!!
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Old Feb 23, 2010 | 04:51 PM
  #2  
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From: Harleysville, PA
Year: 1998
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ok been readin this..... tellin me its not the sycros (sp?)
http://www.quadratecforum.com/showpost.php?p=857489
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Old Feb 23, 2010 | 05:26 PM
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Backwoods Country Girl's Avatar
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From: Wrightwood Ca
Year: 1992
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Thats what mine was goin an other things took it in and they said I need a new clutch
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Old Feb 23, 2010 | 06:31 PM
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From: Harleysville, PA
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hmm... i jist did the clutch 20k ago
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Old Feb 23, 2010 | 07:05 PM
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From: Taylorsville, UT
Year: 1999
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Out of curiosity, did it just start doing this? Does it still do it if you put it in another gear first, then into reverse without letting the clutch out? Mine always grinds a little if I do not do that...
It looks like it is mentioned in the linked article as well.
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Old Feb 23, 2010 | 07:28 PM
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From: New Jersey
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Ehh, every manual has a problem with reverse. I either ease mine in real slow until it halfway clicks and then jam it in or option number 2 is the AX-15 shuffle which is putting it in another gear first and quickly shuffling the shifter over to reverse before it grinds. I usually prefer the AX-15 shuffle, but depends on how bad it is, sometimes it just goes in.
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Old Feb 23, 2010 | 08:39 PM
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From: Midlothian, VA
Year: 1996
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the reason it does this is because reverse does not have a sycro most older manuel trannys do this. are you moving when it does this cause that will make it worse
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Old Feb 23, 2010 | 10:04 PM
  #8  
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From: Harleysville, PA
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i read the reverse dont got a scyncro (sp?) and no im never movin when shiftin 2 reverse maybe ill try the "ax15 shuffle" lol
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Old Feb 24, 2010 | 07:12 AM
  #9  
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I had problems with my sycros in my AX15 from my TJ. I would grind from 1st to 2nd, and sometimes from 2nd to 3rd, and into reverse. A guy on a TJ forum was telling me that the stock Chrysler fluid recommendations actually slowly corrodes the brass syncros. He told me to switch over to Red Line Synthetic, which I did, I think it was 75W90, It was around $50 bucks. Long story short all of my grinding immediately stopped, and I never had another problem with grinding gears.
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Old Feb 24, 2010 | 09:34 AM
  #10  
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hmm.... where do i get that??
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Old Feb 24, 2010 | 11:06 AM
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Here's the link, you can buy it from Red Line directly

http://www.redlineoil.com/product.aspx?pid=46&pcid=7

The MT90 should be the stuff you need for and AX15

Good luck, I hope this fixes your problem so you don't have to replace the syncros!
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