Forum Discussion

covered_wagon's avatar
Nov 08, 2020

Road with uneven surfaces.......

My SRW Ram 2500 just got new M&S E rated Michelins. Wow, How they wandered until they got broken in. As long as the road is graded even with a newer surface its a butter cake to steer, but when you get to old surfaces that tilt side to side you really have to compensate the wheel. I suppose you could call it tilt steer. I hate it the first couple hours on a new trip. After that I'm sort of automated about handling it and becomes a simple difference between loaded and unloaded.

Any you guys with Duals experience some degree of a top heavy feel while on older surfaces?

BTW, my camper weights around 3,000-3400 depending on the trip.
  • covered wagon wrote:


    I've got the rears at 80 psi and the fronts at 70. It steers well, very straight when the surface is flat and not tilted.


    You should go on the scales and adjust the pressure to actuall load.
    I believe 70 psi front is too high.
  • covered wagon

    What Year is your 2500 SRW truck??

    I have a 2007 3500
    Ran Michelins all the years we FT'd
    YES they need 'wear in' miles...by 1000 miles they are done with that squiggle feeling

    I tow heavy....with WET pin of 3100# (puts me right at RAWR)
    I run 80# rear tires and 55# front tires
    I do NOT have air bags......overloads are engaged when 5vr is hitched up

    I know it's slightly different then having a camper on truck but weight is weight

    I think you are running too high pressure in fronts (70#)

    As suggested ...CAT scales to get weights with camper on truck
    Compare actual weight being carried by F/R axles and adjust air pressures accordingly

    No Scales...
    Quick check is to use some 'side walk chalk' (big wide stick)
    run chalk across tire thread side to side (big mark)\
    Drive truck forward 25' and check wear on chalk
    Chalk missing on center area...too much pressure
    Chalk missing on inner/outer edges...not enough pressure
    Even chalk missing across thread....right amount of pressure
  • covered wagon wrote:
    bighatnohorse wrote:
    Those tires can be inflated anywhere from about 65 psi to 80 psi.
    What psi do they have now? Have you experimented with changing tire pressure yet?


    I've got the rears at 80 psi and the fronts at 70. It steers well, very straight when the surface is flat and not tilted.

    Are there any good solutions to getting the overload springs back in action? Since putting on the airbags the rear is so well supported, but is not allowing use of the overload springs.

    I am aware of using bump stops or supersprings on the overloads..... just wondering if anyone has a recommendation for either since one or the other might be a better option based on someone's experience.


    There are many solutions. Start readin. It's discussed here regularly.
  • Excellent advice here everyone. I really appreciate it. I have an 02 Ram 2500 with 105 K miles because it's only used for the truck camper. I like the truck because it the last year you can go without smog check and I also like the mechanical injectors.
    I think Supersprings are the way to go. Getting the springs to do their job sooner will allow lowering the airbag pressures thereby eliminating some of the bounce. Next is to get the front tires down around 55/65 psi like said above.

    It was wonderful, even though fighting 'tilt steer' to go on a second unhurried trip before the snow flies in the California mountains. We had a really great time. I had to go on Highway 80 for about 25 miles. Wow what a nice surprise from memory, as the last time I was there with my beloved Grampa driving his Cadillac 47 yrs earlier. It was very nostalgic. The snow showed up at our favorite camps in northern Cali just a few days after we got home in Oregon.