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Old 07-04-2009, 01:46 AM
4.2trimble 4.2trimble is offline
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Join Date: Dec 2007
Location: Tampa, FL
Vehicle: 1999 Ford F150
Posts: 4,747
id run them around 40 PSI but thats me.

i ran my TSL's at 18-22 PSI and had 35k miles before i sold them.

my Ground Hawgs im running at 15-20 PSI

with a tire like Nitto Mud Graps id run them lower than normal. i think 40 PSI is alittle high. 30 PSI might waste alittle more fuel but they will ride better!
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