AP01 Overdrive Extension Housing 48RE For Ram 2500 3500 2003-2008 4WD 5093166AA 22770GA Replacement overdrive extension housing designed for use with 48RE transmission models. Compatible with Ram 2500 and 3500 trucks equipped with 4WD systems from 2003 to 2008. Matches OEM specifications for fitment with part numbers 5093166AA and 22770GA. Installs as a direct replacement for the existing extension housing. Constructed to support proper driveline alignment and transmission output shaft support. Ensures consistent connection between transmission and transfer case in heavy-duty applications. This is an independent replacement component. References to brands or models are solely for compatibility indication.