This Driveshaft is typically used along with CST's 8-10" lift kits. This CST DriveShaft is designed specifically for customers using certain CST Lift Kits and is recommended for use on 4WD models traveling at highway speeds. 2017 Diesel models will require the Shift Linkage Brackets which are available as an add on above. The part number for this item is CSP-C28-7