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tire wear

1K views 4 replies 2 participants last post by  yogi_9000cse 
#1 ·
when i was washing down my 9k i noted that thear is a inche bald strip around the outside of both rear tires the insied is just like the reas the tires are a bit worn and ill be geting new ones soon but how can i fix this.
 
#2 · (Edited)
Most likely some goof of a tire shop has used a floor jack under your rear axle. This is NOT strong enough to act as a jacking point. The result will be a slight bend in the axle upwards in the center which puts both rear tires into slight positive camber.

Another possibility is worn trailing arm bushings.

Get a four wheel alignment done and if the rear tires are not slightly negative or zero camber you have a bent axle. The tolerance is plus or minus 0.25 degrees on a basic setting of 0.5 degrees negative. This is probably the effect of the vehicle weight on the otherwise dead straight axle!
 
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