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Towing question

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Old Jul 21, 2012 | 09:24 PM
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Ddawg 99 f.150 5.4's Avatar
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Default Towing question

Hey guys ever since i put 33's "which are 10ply running at 80psi" and a 2inch lift i've noticed when i'm pulling a trailer the rear end feels like it is hopping alot vs stock tires with no lift. Could it be the shockes? Any suggestions?

Last edited by Ddawg 99 f.150 5.4; Jul 21, 2012 at 09:37 PM.
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Old Jul 21, 2012 | 09:37 PM
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Man 80 psi that's way up there. I'm running 45 in mine, maybe that's the problem way to stiff of a ride with that much air pressure.
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Old Jul 21, 2012 | 10:22 PM
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Ddawg 99 f.150 5.4's Avatar
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Well these tire are really for a 3/4 ton truck and 80psi is what they put in them at discount tire when i got them but i'll try letting them down to 50psi. But thanks for the help man.
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Old Jul 22, 2012 | 01:56 AM
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If you tow a lot, it might be a good idea to put on a couple airbgs on the rear axel to to help the shocks. We do this at my shop often, but they're usually put on heavier duty trucks like F250's, and Chevy 2500's and higher. Letting some air out of your tires is a good start. Start with 50 PSI and go higher from there until you find the right pressure that suits you. Also, the amount of weight your pulling really effect's the trucks ride. Good luck.
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Old Jul 22, 2012 | 03:21 AM
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80psi is for the max load rating of the tire.
You would have to grossly overload your truck to ever come close to the max load rating on those tires.
You don't need to run 80 psi in them.
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Old Jul 22, 2012 | 06:51 PM
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Ddawg 99 f.150 5.4's Avatar
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Well today i was hauling my golf cart so i let the pressure down to 50psi in the front and 45psi in the rear and it was the difference between night and day it rides a ton better! Thanks for the help guys.

Last edited by Ddawg 99 f.150 5.4; Jul 22, 2012 at 06:58 PM.
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Old Jul 22, 2012 | 09:20 PM
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Good to hear that your problem was fixed
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Old Jul 22, 2012 | 11:19 PM
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Rock on dude!!
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Old Jul 23, 2012 | 12:34 AM
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Ya I'd run them more in the 60-65psi range. Used to do that with a 3/4 ton dodge diesel when running around unloaded or with a small load/tow. Just bumped them up to 80-90psi when I was loaded heavy and never had problems.
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Old Jul 23, 2012 | 12:44 AM
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Unloaded in my truck with 10 plus I only run 35 psi there so hard that no reason to do anymore than that and high pressure just seems to put added wear in the center of the tire. You could always use the chalk method and drive around after putting a mark across the tire. after driving the chalk will wear indicating whether you have to much or to little air in the tires
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