Evan-Fischer EVA16572040060 Wheel Hub Assembly for GMC Sierra P/U 99-06 Front RH=LH 6 x 5.5 in. Bolt Pattern 7.09 in. Flange Dia. Right or Left FREE 1-year UNLIMITED mileage warranty coverage on Evan-Fischer items purchased thru AUTO PARTS GIANT Store A high quality, Direct Fit OE Replacement Wheel Hub from Evan-Fischer Bolt Pattern: 6 x 5.5 in., Hub Pilot Diameter: 3.91 in., Flange Style: 3-bolt modified triangular flange Brake Pilot Diameter: 3.09 in., Flange Offset: 1.97 in., Stud Size: M12 x 2 in., Wheel Pilot Diameter: 3.06 in., Flange Diameter: 7.09 in. Bearing Included, Bearing Type: Ball, Non Driven, ABS sensor and lug bolts, This product is compatible for RWD models only. Will NOT work for 4WD models.