Lift kit, big tires, and speedo calibration

[AHarris]

Take a 3500 4 X 4, put 6" lift on it, and get 35" tires. How hard is it to recalibrate the speedo so you get the correct speed? Is this something a Bully Dog or other DIY programmer can do or do you have to go to the dealer?



Any recommendations for a good lift kit and big tires? If I do it to this truck, I want to do it right. Plus, I think the bigger tires will help me out with the short G56 overdrive.

 

[johncameron]

Wait for the SMARTY to come out and add a few ponies at the same time

 

[Bob4x4]

I have to agree,buy a smarty when it gets released for your application. When it comes to suspension after a lot of experimenting with different systems and componets I have been very happy with my latest choice. See it here

Carli - Dodge Lift Kits, Suspension, Ram Performance Products



Bob

 

[Dishman Dodge]

Unfortunately, dealers can only recalibrate the speedo to a 285-70R-17, nothing larger on any 2006+ rams. The new scanners for these vehicles only allow the technician to choose from a set of tire sizes that come factory on the vehicles (this size being on a powerwagon). The old system allowed the technician to load in tire revolutions per mile, thus allowing the input of ANY tire size. I am personally not terribly pleased with the way they did it, but oh well, that's what i get!!!



-Josh