Mazdaspeed6 Transfer Case PTO Bearing CapsThe strongest Mazdaspeed6 Transfer Case Bearing Caps on the market! We machine these out of billet 7075 Aluminum, using CMM (coordinate measuring machine) data of the factory caps. This means you get a very precisely measured and machined product, that will take all the abuse you can throw at them. The factory bearing caps are a known failure point within the Mazdaspeed6 transfer case. These are generally the first component to fail during a hard