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LaJaMe 
Bronze Level
Joined: 14 Sep 2014
Location: wisconsin
Points: 171
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 Topic: 7000
Posted: 22 Jun 2017 at 10:13pm |
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Have an ac 7000. Everything fine accept when you put it in reverse, there is noise i think in the rear end.. Any thoughts on what we maybe looking at. Thanks
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MACK
Orange Level
Joined: 17 Nov 2009
Points: 7664
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Posted: 22 Jun 2017 at 10:23pm |
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Tooth bad on one of three reverse gears. Reverse directly behind park causes a problem with reverse gears. Operator pushes clutch down, pulls shifter from park to reverse, transmission has not stopped yet and gears clash, causing damage to reverse gears. MACK
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LaJaMe
Bronze Level
Joined: 14 Sep 2014
Location: wisconsin
Points: 171
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Posted: 23 Jun 2017 at 8:20am |
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Thanks Mack
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WF owner
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Joined: 12 May 2013
Location: Bombay NY
Points: 4895
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Posted: 23 Jun 2017 at 6:45pm |
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I believe you can repair it without splitting it.
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MACK
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Joined: 17 Nov 2009
Points: 7664
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Posted: 23 Jun 2017 at 10:06pm |
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The only gear that can be replaced without a split is the sliding gear. MACK
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Hurst
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Joined: 11 Sep 2009
Location: Midway, Ky
Points: 1213
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Posted: 23 Jun 2017 at 10:42pm |
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If it's the sliding gear, which was made out of softer metal, I believe, than the other two gears, you need to pull both the shifter top and the rear end cover, as the shaft has a retainer that is bolted on the differential side. The new gear will need to be honed to the size of the shaft, so you will need to take them to a machine shop, all assuming that is your problem. The gear is available aftermarket. The other gears are on your transmission shafts. I know the countershaft gear is actually machined into the shaft itself. I can't remember about the top gear.
Hurst
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1979 Allis Chalmers 7000
5800 Hours
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