A-Arm: 10 Degree Bearing Style-Screw in Ball Joint-Slotted Shaft-Specify Steel or Aluminum JOES Bearing Style A-Arms are state of the art. The bolt on A-Arm tube section lets you carry additional lengths for use with just one shaft. This features saves you money and allows for quick changes at the track. 4 Sealed Roller Bearings eliminate friction and resistance so you car is consistant every week with incredibly smooth rotating action. Other brands can bind adding spring rate randomly. The split design works perfectly for cars where the A-Arm needs to wrap around the frame mount. Check out the entire line of JOES A-arms. We make all the popluar configurations. Aluminum shaft and steel available. Single hole or slotted to accept the JOES A-arm slug. 0 Degree or 10 Degree. Bearing a-arms are the ultimate addition to your chassis. Pit Stop USA offers Joes Racing Products 15580-SLB, JOES A-Arm - 10° Bearing Style - Screw in Ball Joint-Slotted Shaft - 12.00" at low everyday prices. Be sure to check out all of our products from Joes Racing Products including Joes Racing Products JOES Slotted Bearing Upper Control Arms and more.