The 66RFE transmission is plagued by many of the same component failures as its bigger sibling, the 68RFE. This includes valve body cross-leaks, a worn SSV bore, and Overdrive (OD) clutch failure. The BD Roadmaster 66RFE transmission addresses these issues with an upgraded valve body, featuring a billet steel-sleeved SSV bore for leak-free, reliable valve operation, and a gasketed separator plate that prevents cross-leaks from robbing OD clutch pressure. Combined with a line pressure booster and a ProForce torque converter, the Roadmaster 66RFE transmission is a reliable upgrade for stock or mildly upgraded 5.7L/6.4L HEMI equipped Ram 2500 and 3500 series trucks.

This Part Fits:

Year	Make	Model	Submodel
2013-2018	Ram	2500	Big Horn
2012-2018	Ram	2500	Laramie
2014-2015	Ram	2500	Laramie Limited
2012-2018	Ram	2500	Laramie Longhorn
2016-2018	Ram	2500	Limited
2013-2015	Ram	2500	Lone Star
2012-2016	Ram	2500	Outdoorsman
2012-2018	Ram	2500	Power Wagon
2012-2018	Ram	2500	SLT
2012-2013	Ram	2500	ST
2013-2018	Ram	2500	Tradesman
2013-2018	Ram	3500	Big Horn
2012-2018	Ram	3500	Laramie
2014-2015	Ram	3500	Laramie Limited
2013-2018	Ram	3500	Laramie Longhorn
2016-2018	Ram	3500	Limited
2013-2015,2017	Ram	3500	Lone Star
2012-2018	Ram	3500	SLT
2012-2013	Ram	3500	ST
2013-2018	Ram	3500	Tradesman