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"hopping"

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Old May 12, 2006 | 04:56 PM
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herb
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From: Battle Creek Michigan
"hopping"
my 6 speed is getting a hopping or jumping when i am backing up with a load.
Is this the beginning of a clutch failure? All seems well in forward gears
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Old May 12, 2006 | 05:02 PM
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Is it hopping when the clutch is partially engaged? Just reverse? It may be clutch chatter....Sorry not to be so much help. Others with more experience will chime in, I'm sure!
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Old May 12, 2006 | 05:06 PM
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From: Battle Creek Michigan
yes, i am "feeding" the clutch pedal when backing up a 46' gooseneck trailer
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Old May 12, 2006 | 06:01 PM
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Try putting it in 4 low and you won't have any problems.
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Old May 12, 2006 | 07:32 PM
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From: Battle Creek Michigan
Originally Posted by d0dg301
Try putting it in 4 low and you won't have any problems.

thamks, i will give it a try
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Old May 12, 2006 | 09:12 PM
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John H
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Originally Posted by d0dg301
Try putting it in 4 low and you won't have any problems.
I have the same problem, but no 4 low. Any more ideas?

John
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Old May 12, 2006 | 09:17 PM
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I get it going forward with the power up towing very heavy when the weight is on the trailer and light on the truck at intersections that are on an uphill grade and I know it is spring wrap.
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Old May 12, 2006 | 11:49 PM
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may be driveshaft alignment. it is pretty long, and has a rubber mounted carrier bearing, and under the torque we put out, it may deflect.
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Old May 12, 2006 | 11:54 PM
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Don't know about these trucks but in a large truck if you try and slip the clutch while backing it will hop and bounce....

You just put it in reverse and let it idle back...
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Old May 13, 2006 | 08:42 AM
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From: Battle Creek Michigan
Originally Posted by gerry
Don't know about these trucks but in a large truck if you try and slip the clutch while backing it will hop and bounce....

You just put it in reverse and let it idle back...
it moves to fast at idle to back and control trailer
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Old May 13, 2006 | 11:32 AM
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From: The Great NW, Or.
Not sure, but I beleive reverse gear ratio is about the same ratio as what second gear is going foward.
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Old May 13, 2006 | 11:54 AM
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From: port crane, NY
How are your motor/tranny mounts? When they get soft, they can twist pretty bad under load. Mine does it and I know my mounts are shot
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Old May 14, 2006 | 10:49 PM
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Careful with backing in 4lo and dry pavement. You can wind your drivetrain up pretty fast. It will happen even faster if you have a heavy load on.
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