Converter, (11 1/2" Dia)(20 Spline Input Shaft)(3 Mounting Studs Atop Round Bases Atop Square Bases)(W/Clutch)(.825" Pilot)(9 1/4" Bolt Circle)(11 9/16" Across 114 Tooth 7/16"" Wide Ring Gear)(1.654" Flanged Milled Flat Hub)(10X100 Thread