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Old 06-16-2013, 03:19 PM   #6
Sierra 117
Montana Fan
 
Join Date: Jul 2009
Location: Stratford
Posts: 241
M.O.C. #9481
I run my tires at 70 psi front and 75 to 80 psi rear. Got 50,000 miles on the OEM Ameritrac. they were still legal, but were loosing gripping ability on wet surfaces, so I replaced them. The tires were rotated once, but probably didn't need it. It sounds like something is not right with your truck.
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