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brulaz's avatar
brulaz
Explorer
Oct 07, 2017

Tire wear a bit uneven - pos camber adjustment?

2016 RAM 2500 Cummins. Treadwear on OEM LT275/70R18E Firestone Transforce ATs at 34K kms (21K miles) is sightly uneven:
currently 8/32" deep on the inside groove, 6/32" deep on the middle and 5/32" deep on the outside groove. They're all like that as I rotated them at about half the total mileage.

Guess that means there's a slight positive camber in the front end?
Can the front end be easily adjusted to take that out or does it require somebody really special with an expensive machine? (Not sure I trust the local dealer although they claim to do front ends...)

And what about the tires? Worth it to have them removed and put on reverse-wise? (they're not directional) Seems a little early for new tires.

We tow about 75% of the time.

18 Replies

  • I had the same issue with my 15 3500. I had the alignment done and it was the toe-in. Apparently the factory sets it that way. I've always heard not to reverse tires, even if they aren't directional. Is it a valid option to try?
  • time2roll wrote:
    First I would measure the front frame height when connected and compare to unloaded. Probably a long shot.
    ...


    The front frame (measured at the wheel well) does lift ~0.5" when initially hitched but I do reduce it to about 0.2" with the WD bars.
    Tongue weight is around 1200#.
  • Thanks for the great advice folks.

    Both sides show the same wear pattern and depth as best I can measure.

    Think I'll just get the tires reversed for now, and then get the alignment done next spring when I buy new tires. Will ask for before and after readings and ask them to look closely at the toe adjustments.
  • Tow should be zero or 1/16 in, and if thats not it they make offset balljoints to correct camber on straight axles.
    I don't think a new truck would have camber issues, and I rotate mine every 5k miles.
  • Denny & Jami wrote:
    You tow most of the time so put a load in the back and take it to a alignment shop.

    Denny


    It's a solid axle truck, so rear ride height makes no difference. An ifs may wear a bit different loaded or empty.
  • First I would measure the front frame height when connected and compare to unloaded. Probably a long shot.

    If both fronts have the same wear is may also be the toe is too far in. Either way it needs to get on an alignment rack. Get a printout of the measurements before, after and the specs and post them up.
  • You tow most of the time so put a load in the back and take it to a alignment shop.

    Denny