2006 Dually Tire sizes

[ACamilli]

I am running stock factory wheels and tires. How taller, not wider, can I go? I figure with my stock 3:73 rear my 4x4 automatic may get better mileage.

I know my dealer will have to readjust computer to adjust for revolutions per mile.

 

[wyhog1]

Good question... .

 

[Road Dog]

There's nothing taller than the stock 235/80R17 tire.

 

[ACamilli]

So much for that thought... ... ... ...

 

[AH64ID]

There is a 255/80/17, but it's a BFG KM2, which is a MT, and the decrease in rpm's will probably be offset by the added rolling resistance of a MT. It is a little wider, but still fits the DRW without clearance issues.

HPCR's are less effected by rpms than older mechanical diesels.

On a side note, all motors in 2006 were HO and produce 325hp, and 610 ft/lbs.