When I picked my truck up last week I had my 35" super swamper vortracs swapped over from the old truck. As soon as I left the dealership I noticed a vibration/steering wheeel shake betwen 50-60 mph. I took the truck back the dealer the next day and they rebalanced the tires and told me the shake was gone. Well it's still there, so I wiil be going to the offroad shop that sold me the tires and will have them balance the tires as that have more experience with the bigger tires. I checked the front end for any loose parts and didn't see any. If the tires balance okay and the shake is still there I'm going to have to assume that one of the tires has a broken belt or some other problem. Also I found out not to get into an argument with the tire jockey,young kid, not mechanic) about the low tire inflation system. They tiold me that I had to run factory tires and pressure to keep the system from setting off the dash warning. They put 80 psi in my 65 psi rated tires! I told them the sysytem has to able to accept different tires and pressures.

 

I used to run 38 inch Super Swampers I have had several sets and I dont think I ever got a perfect ride out of them. I think they have so much rubber that they can never be perfectly balanced.

 

I had 38" Swampers on my 99' and it didn't feel like this truck does. If you hit a certain speed it almost feels like when your in four wheel drive off road and the front tires are slipping and re-gaining traction. It actuallly shakes the steering wheel slightly left and right if you let go of the wheel.

 

Try having them rotated to the rear I had a set that did the same thing and I put them on the rear and it got a little better. I have only had good luck with one set of Swampers I think they where the Iroks now I just steer clear of swampers all together. also I dont know if you had these tires off the rim for a while but I have had a litlle water in the tire that balances but once you stop and start again it is in a different spot which nocks it out of balance. I doubt that is your problem but I grew up in the snow and mud and it was pretty common in my town.

 

Dave, considering your comments about swapping tires from your old truck to the new one and your conversation with the tire jockey I would assume that the rims were not swapped. Therefore I would suggest that you have at least one tire that has a heavy spot mounted on a rim with a heavy spot that are close to each other. You need to have the tire beads broken and the tire rotated 180 degrees on the rim and then rebalanced. You should see a significant reduction in the amount of weight needed. Just look at your tires now and see if any one has a larger amount of weights attached as compared to the rest, that will be the one causing the bounce. Otherwise you will need to have the tires balanced on the truck which will compensate for any drivetrain inbalance. Good luck and keep us advised as to your resolution.

 

I agree I never thought about that but it makes sense.

 

stock rims or wider rims? I had the same problem and the stock rims were too narrow on my 05'.

 

I have stock rims and 35's on my 06 with no problem but they are not Swampers.

 

I did the procomp a/t 35" tires on my stock rims, I used Innovativebalancing's dyna beads , no weights , super smooth ride , even better than the small factory tires .

 

They are the stock rims. These are my third set of 35" tires with stock rims but these are the first set that have ever gave me a problem. I had the re-balanced yesterday but the vibration continued until I rotated the tires back to how they were on the old truck with the rounded edges up front and the flat tread in the rear and 80% of the vibration went away. I did switch sides though hoping to even out the wear some.

 

What are the dyna beads and can I get some.

 

They have a web site, Innovativebalancing or dynabeads brings you to the first one.