Got a humming or grinding noise from your wheels? Might be the wheel bearings. This Detroit Axle kit includes a pair (left and right) of complete wheel bearing and hub assemblies for 2010-2016 Cadillac SRX and 2011 Saab 9-4X. They fit both front and rear, for 2WD or 4WD models. Each hub has a 6-bolt lug pattern, an ABS encoder, and a 3-bolt triangular flange. They're made from high-quality bearing steel with a high-frequency quenching process for durability and rust resistance. Direct replacement for part number 513289 and others. Comes with a 10-year warranty. A complete unit makes installation easier – just bolt the old one out and the new one in. Fix that wheel noise and get a smooth, quiet ride back!