Bolt a JXB center support bearing carrier under a carrier bearing spacer and the shoulder bolts that come with the carrier are too short to reach. The JXB Carrier Mounting Sleeve Kit (HDW04A0) solves that with two steel sleeves that sit inside the carrier's damper bushings and four washers that go above and below them. With the sleeves in, the carrier bolts to the bottom of the spacer using the longer bolts from your spacer kit, such as the ADF 3/4" Carrier Bearing Spacer. It fits every JXB driveshaft carrier with M10 mounting bolts, which covers the Subaru Crosstrek, Forester, Outback, Impreza, WRX, STI, Legacy and Baja carriers, but not carriers with M8 bolts. Lifted Subarus around Calgary often end up with both a spacer and a JXB carrier, and this kit is the piece that joins them. Canada-wide shipping from Flat 4 Offroad in Calgary.