1st off hey guys. I'm new to the diesel world in pickups. I drive rigs all the time but finally got my 1st diesel. '05 2500 cummins ho with the 6 speed. I dont know much about them because my friends own fords. It has 315 Bfg's on it and they fit great it seems but a little rubbing at full turn on some crossmember.
I do have the dreaded death wobble that everyone talks about. I know I need to replace a inner tierod at the pitman arm. It is going in for the recall thurs. and the dealership is going to update it all with the tsb 22-005-06. I plan on getting the maxx links, the steering box stabilizer and possibly an adjustable trackbar.
My question is do I need better springs and shocks to run 315's? I appreciate all the information on this site.

 

The stock springs are good but I would upgrade the shocks for sure and check out sourceautomotive.biz

 

I wouldn't run bigger than 305's. Those 315's are nice and big, but unless you spend the money for a lift and wheels with the right offset you're going to get tire rub at full lock. Those larger tires could also be the main source of your death wobble issues, or at least made them noticeable, and you might end up needing to fix it again because of the tire size.

I run 285's, they fill the wheel well nicely, and no rub or death wobble.



Kris