- Engineered Suspension Management front upper control arm spherical bearing kit. Features OEM cast replacement housings that are designed to replace your OEM lowers. It utilizes a COM10T bearing which has a static radial load rating of 22000 LBS, along with custom CNC machined misaligned spacers for that perfect fit and finish. The kit is complete for both left and right arm assemblies. We also now have available as an upgrade the NHBB ABT10 bearings for an additional $125.00 if you feel that you need it.