Originally Posted by GRB1
Good info. So when you say some tire companies do not respect the 24 lbs centrifugal force, the tire company might say that over 24 lbs would still be in spec? Am I understanding this right?
I understand the rim matching, I asked about this and got a response that led me to believe the dealer employee didn't know what that meant. Not good.
I am going to spend some time talking to the service guys when I go in this time and get them to understand what the vehicle is doing and to get them to give me the readings once they have performed the road force balancing.
Really the only arguement that I have seen against the Road Force balance is that some tire companies (usually off brands or offshore rip offs) will say that no where in their warranty do they gaurantee this as the Rim may be the problem. The Machine does a RIM Runout though so we know the Rim is good. On these Cheapo tires when it does the he speed spin you can stand off axis to the tread and usually see a lump or flat area that coresponds with the issues. Eaither that or if the tire company that is having the arguement wants to actual come see mount a known good tire and show them the balance difference (not easy but I have seen it happen).
So likely none of the above applies with factory warranty. Chrysler does often Pro-Rate the warranty on the tires though (depending on the situation). I don't believe it applies to anyone I read in this thread though. You guys all have pretty low mileage. Goodyear is generally not a problem with warranty.... There were some lumpy affinities for a while a bunch of years back (mostly GM Minivans) and they were pretty good about full replacement. Fact is the Manufacturer has all this stuff sorted out with the tire manufacturers so it is really not your issue.
The person here who was told to go out and buy new tires (assuming there was a real vibration, not questioning just I did not drive your car personally) that is just crap!.... So what are they going to do if that completely corrects the issues, pay for your new tires because I know that wont happen. Chrysler will warrant the tire problems, even if they have to replace more than one tire. This isn't just a Jeep issue either, got into it with Mercedes and those stupid Continental's a number of times. The dealer just doesn't want to deal with it because it is time consuming to sort out and warranty will likely only pay for the replacement, and or re-balance, not all the dinking around.
Fact is make sure your service department knows you are not going away until it is rectified. I want to clarify on this too that you may sometimes see the passenger side headrest look like it is shaking a little and this is NOT a concern. With the stiffness of the chassis on these you will get that sometimes even on smooth pavement. A Shake in the steering wheel or felt in your butt is not acceptable and is the sign of a problem. As I have noted before, if the vibration was always consistent and at consistent speeds it COULD be something in the driveline. If it is variable one day to the next and is sometimes better, it is the Rubber. Drivelines stay the same or get worse, they almost never get better on their own (unless it is right before failure, but the mechanics on here can speak to the interesting coincidence!)