Just be sure you're putting an 11.5" DRW in place of the 11.5" SRW... 2014 was when they put an 11.8" behind the Max Tow 3500s. If it's an 11.5" then the connectors, etc should all be a direct swap. 2014 is also the year they gave 3.42 gears to all Cummins tru... Login to read more.