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Old 09-15-2010, 05:47 PM   #1
Join Date: Jan 2008
Location: Tujunga, CA
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Crab Walking Down The Road

I did a search and found some interesting info, but not sure if it's the problem or not. When driving down the road the back is to the right side of the lane while the front is towards the left. What would cause this?
Front end allignment? Rear end Alignment? My Serial #75228. Thanks

2005 Alpine Limited
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Old 09-15-2010, 05:55 PM   #2
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Spartan Chassis
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"Crabbing" is generally caused by the rear axle being out of alignment. It will eat up tires and burn extra fuel.

Jay & Peggy Monroe with Dolly
Can't take it with you - don't plan on leaving any behind
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Old 09-15-2010, 06:18 PM   #3
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Join Date: Apr 2004
Location: TX
Posts: 495

You might have a coach with the rear axle mounting deficiency, as described by this irv2 link:

Possible Rear End Deficiency, late 04's, early 05's

This comment by one poster might describe your coach:

"After buying our '05(#75327) I notice that it seemed to be "dog tracking" while looking back through the rear view mirrors. While at my shop I measured the distance on both sides of the coach from center of the front axle to the center of the rear, and found a difference between both sides. I don't remember now what it exactly was maybe 1"-1 1/2". I have the paperwork that I drew up and faxed to WRV in the motorhome with the measurements. When we were at the factory in July of '06 that's what they did to correct the problem, drilling them out to 3/4" at the rear. Mark told me at that there were a few of them out there with the 5/8" bolts, but that thought they had 'em all fixed. __________________
John & Greta
'05 36' FDDS"
Dale & Karin
2006 Alpine Coach Limited 36FDTS
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Old 09-18-2010, 10:06 PM   #4
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Join Date: May 2010
Location: Albuquerque, NM
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Most any qualified alignment shop can fix this quite easily. RV alignments are 4 times easier than any passenger car. Look for a shop that uses a Hunter rack such as the Pro XL. The tech applies a sensor pad to each of the 4 wheels. We then determine walkout on both axles. the front axle is then matched to the rear. We have yet to see a rear end so far out that we cannot align. Also, the alignment shop must have all 4 tires in the same plane. I hate driving buy shops and seeing the ass end of an RV sticking out of a bay. They are stealing money. No way to do a quality thrust alignment.
Walking the dog, crabbing or whatever you want to call it, can cause uneven tire wear.
2001 Alpine 38201 26,000 miles Banks Power w/ Ottomind, Boost/ EGT Gauges, HID Conversion, Python SmartStart w/Alarm, 3 Yorkee Copilots
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