742 gears in a 741 case

741 case takes pinion bearing HM89446 cone , HM89410 race -- O.D. 3.000 ,,, I.D. 1.375
742 case takes pinion bearing HM803149 cone , HM 803110 race -- O.D 3.500 ,,, I.D. 1.750
don't waste your time with this ,,, get the correct gear for the correct case