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Old 08-13-2006, 10:57 AM   #2
Motor31
Senior Member
 
Join Date: May 2005
Posts: 2,130
If it had airbags the pressure can be reduced (if they were inflated at all) based on reduced weight of the empty truck. The same for the tires. When you are not towing you can reduce the tire pressure to the level recomended by the tire manufacturer for the actual weight on the axle at the time. Example, if the tires are rated for 125 PSI at max load you can reduce it based on the actual weight (go to a truck scale and weigh each axle seperately) on the axle. If the weight chart says you can reduce the pressure to 60 PSI it will help the ride and also help you keep the center tread from wearing sooner by being bulged out from high pressure and insufficient weight to press it flat. Just remember to pump the system and tires back up before towing again.
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Mike Nancy and the fuzzies
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Volvo 660 MH tow vehicle
2005 MS 38RL
2007 Saturn Ion "toad"
2010 Gold Wing "piggyback"
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