I recently installed a 6 inch Fabtech lift on my 04 QC. I plan to run 37 inch tires on 17 inch rims. I know I will need to do a body lift. Now my question is has anybody here done a body lift on the Ram. Are there any negative things about a body lift? and lastly I'm running on 3.92 axle how much will the 37 in. tires effect my trucks performance? Do you think Hypertech or Superchips programmer will help?

 

Can't help you with the body lift question, but with regards to gearing, i would go 4.56.