First time towing questions.. Tire psi/Air-bag questions

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by beforeiforget761, May 16, 2010.

  1. beforeiforget761

    beforeiforget761 New Member

    Hello again!
    I've got my 2004 Silverado 1500 5.3L

    This weekend, i'm going to be towing a 2008 Mustang on a flat bed trailer, and it's going to be over some pretty hilly roads.. and might be a little warm outside (around 90degrees-ish).

    My truck came with some pretty heavy-duty tires (in my opinion) when I bought it.. Dunlop LT265-75R16, and it also has air-bag spring assists in the rear. I'm kind of new to towing, especially with these air-bags in the back.
    Anyone know what kind of air pressures I should be running in the tires? Just keep it at the usual pressure the sticker on the truck says, or bump it up a little bit?
    What about the air bags.. just put air in them until the truck looks level with the trailer attached??

  2. tbplus10

    tbplus10 Epic Member Staff Member 5+ Years 5000 Posts Platinum Contributor

    Tires should be set to manufacturers PSI and air the bags up until you sit level providing you've got your tounge weight correct.
  3. 2COR517

    2COR517 Epic Member 5+ Years 1000 Posts

    Tire pressure depends on the load range of the tires, and truthfully, the weight on the rear axle. If they are "E" range, you don't want 80 in them.

    As for the air bags, inflate to level the truck as mentioned.

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