The 212135-1XVB or 2121351XVB Dana center bearing is a driveline part. A center bearing of this kind supports the middle of a long, split driveshaft and holds it in line, while its rubber mounting soaks up vibration and shock that would otherwise run through the driveline. When one wears, the usual sign is a shake when pulling away from a stop, and the extra strain lands on other driveline parts. This is a genuine Dana part from Pro Gear and Transmission. Call us to confirm proper fit for your application.FeaturesDana center bearing, driveline partSupports the middle of a split driveshaft and keeps it in lineRubber mounting damps vibration and shockA worn center bearing often shows as shaking when pulling away from a stopGenuine Dana part sold by Pro Gear and Transmission