Product Details: Driveshaft center support bearing (also known as a driveshaft carrier bearing) for two piece driveshafts 1.574" ID 6.620" bolt center to center Parts Included: (1) bearing (1) large dust slinger (1) small dust slinger Fits: Ford Super Duty F-250 and F-350 with two piece rear driveshafts TBD Brand: Dana Spicer Part Number: Dana Spicer 211359X Installation Details: For fixed yoke two piece axle shafts the nut holding the yoke on is typically a 1-5/16" (or 33 MM) Mark the yoke to driveshaft orientation before removing!!! This helps maintain yoke phase and the balance of the shaft to minimize vibrations Strap is marked with an arrow and 'FRT' to indicate the orientation to install the bearing Larger slinger is installed on the driveshaft side Small slinger is only used on slip yoke style two piece driveshafts Apply thread locker Loctite 263 to the threads and nut before assembly Torque the nut to 250 ft*lb Warranty: 6 month warranty and case by case basis.