have them swap a set of 18s from a stock unit onto it and drive it. i bet its the 20s. mine firmed up a little with the 20s from the stock 18s but then again the second set of 18s i had were load range E tires so that made it stiffer too so if i had gone from the OE 18s to these i bet it would be a big difference.
im suprised you didnt test drive the truck before you bought it? if you would have, i bet you would have realized how much you dont like those tires/wheels on there and you would have gotten some that you did like.
The salesman convinced me to get the Oklahoma Edition package and I liked the wheels so I bought it. I never considered the ride would be like it is, and the feedback in the steering wheel is completely whacked.
I talked to the service guys some and they made some very funny suggestions. I thought I would share them with you, and keep in mind I just paid for a $45k truck and have had it for 28 days:
- "You probably need to put some weight in the bed of the truck, right behind the cab. This will make it ride a little smoother"
- "I think it's the tires. We're getting those rims in with the BF Goodrich with more sidewall and they have an awesome ride!"
- "I would just go ahead and switch out the wheels and tires for something else. Of course that could get expensive!"
I thought all of this was quite comical, but I let it ride until I go back in later in the week so I can get something else looked at. Then someone (my salesperson and someone from service) is going to take a ride with me and tell me they want to drive a truck like this for the next 5 years. My left hand and forearm were numb by the time I got home from the feedback in the steering wheel.
The point of all this ranting is there is no way this ride is normal. There is no way this package should be like this. I paid $5k for thie "upgrade" and they are going to do something, whatever it takes, to make me feel like this WAS an upgrade.
I'll keep you posted.