1. Ring Rotor Gage This gage checks the clearance between the ring & rotor in power steering pumps. Added:10/7/2009 | 2. Ring & Rotor The gage uses twelve digital probes and compares the lowest of six points on the ring to the highest of six points on the rotor to determine clearance. Added:10/7/2009 | 3. Sideview Part in gaging position. Added:10/7/2009 |