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  #1  
Old 11-21-2012, 04:57 PM
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Axle wrap?

I'm trying to figure out if what I am expecriencing is axle wrap or something else. I've had some drive line vibration at take off well yesterday I pulled the chip out of my truck to get it reburnt and when I drove the truck today the driveline vibration was almost gone completely upon take off, does it sound like I am experienceing axle wrap from the added power of the chip or is it something else?
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Old 11-21-2012, 07:35 PM
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i wouldnt suspect your feeling axle wrap, unless your pedalling the throttle. loading and unloading the springs is what cause wheel hop. now, during acceleration you will feel axle wrap in a sence that the trucks lifts up. the addded power could be adding enough flex to change pinion angles enough that it may have a slight vibe, i would think you would be hard pressed to notice it. i may look more towards trans shudder from time used with a tune.
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Old 11-21-2012, 08:11 PM
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i have the same or atleast similar thing happening and i know for a fact it isn't axle wrap seeing as i have traction bars. i'm pretty positive that my carrier bearing is getting weak and allowing to much movement of the drive shaft
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Old 11-21-2012, 09:28 PM
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Carrier bearing. If you have a lift you need a carrier bearing drop bracket

Last edited by scparrish; 11-22-2012 at 05:40 AM.
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Old 11-22-2012, 12:36 AM
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The truck has a leveling kit and a 3in block.
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Old 11-22-2012, 06:53 PM
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3in block by itself or on top of factory block? Im gonna assume by itself and you should be fine with out drop bracket. But carrier bearing could be worn out. Get under your truck and try to move shaft around it should barely budge
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Old 11-23-2012, 03:40 PM
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There just stock 350 block thats the only block nothing stacked on top.
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Old 11-23-2012, 05:08 PM
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I would check the carrier bearing then.
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Old 11-23-2012, 06:49 PM
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I've looked at the carrier bearing a couple times and it does move around a little but I thought it was acceptable considering its mounted in rubber the rubber around the bearing doesn't look the greatest though its showing its age it's not wripped just stress crack in it. I guess I'll replace it and see what happens
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Old 11-23-2012, 07:46 PM
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I would they are pretty inexpensive and easy to change
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