Installs Harmonic Balancers or Drive Pulleys that are Pressed on the Crankshaft. SUPERSEDED TO #53790 Harmonic Balancer Installer Kit, 13 Adapters Set includes driving screw, thrust bearing and 12 threaded adapters necessary to work on a wide range of domestic and some import harmonic balancers. Four long adapters for use on Dodge Hemi, Generation III and IV GM motors, some Ford and some Chrysler. The 1.75" spacer allows the tool to work more effectively on deep harmonic balancers. Callout Number Part Number Description 1 52270 7/16-20 Adapter 2 52300 1/2-20 Adapter 3 52330 9/16-18 Adapter 4 52340 5/8-18 Adapter 5 52360 3/4-16 Adapter 6 52350 M16 X 2.0 Adapter 7 52320 M14 X 1.50 Adapter 8 52290 M12 X 1.50 Adapter 9 53770 M12 X 1.5 Adapter 10 52230 Driver 11 53490 M16 X 2.0 Adapter-Long 12 53480 M14 X 1.5 Adapter-Long 13 66860 M12 X 1.75 Stud- Long 14 52240 Knurled Nut 15 66720 M12 X 1.75 Nut 16 52210 Flanged Nut 17 52250 Spacer 18 52220 Thrust Bearing 19 53470 Spacer 20 53780 Case for #53760