SPECS:
1.250" = ROUND BORE INSIDE DIAMETER
.312" = KEYWAY WIDTH
1.920" = APPROX LENGTH THRU HOLE
2.870" = APPROX OUTER GROUND HUB DIAMETER
2.750" = FEMALE PILOTING DIAMETER
.375" = THREADED SET SCREW HOLE SPECS
4.560" = APPROX MAX SWING / OUTER FLANGE DIAMETER
2 3/8" x 2 7/8" x 3 3/4"diag = APPROX BOLT HOLE SPACINGS (rectangular pattern, .450" bolt hole diameters)
NEW - VARIOUS MANUFACTURERS
*TYPICALLY SEEN USED WITH 1350-1410 SERIES DRIVELINE COMPONENTS