"STEEL,COMP. FS-8617,6.374 IN. SHOULDER OD,0.719 IN. W,GROOVE 4.749 IN. DIA 0.375 IN. W,2.625 IN. O/A LG,HUB 6.000 IN. OD,5.512 IN. ID,1.063 IN. LG,6 HOLES 0.272 IN. DIA,0.594 IN. DP W/0.313-24 NF-2B THD 0.469 IN. LG,9 HOLES 0.156 IN. DIA DRILL THRU IN 4.250 IN. GROOVE DIA EQUALLY SPACED"