2003-2008 Dodge Ram 3500 4WD Diesel/V10 Reg/Quad/Mega Cab Revtek 6" Axle Forward Suspension System Features: Longer control arms to relocate the axle forward for improved tire clearance Driveline spacer to compensate for axle being forward No cutting or welding necessary Easy bolt-up installation--the most installer friendly system available All-inclusive kit--no extra components necessary