A double bearing adjustable rear upper control arm is available for 1965-68. The upper arm adjusts while on the vehicle. No need to disassemble for resetting the pinion angle. This control arm is a must if a 9-inch Ford rear end is installed. The arm has a spherical bearing on the frame side and rear end side. The arm has a Hex adjuster that is used to adjust the pinion angle. After the angle is adjusted, jam nuts are used to lock the arm length in place. The upper arm is sold individually because some cars only had one upper arm from the factory. Lower rider applications and hydraulic cars will also enjoy the amount of travel that is available.