I have a 741 that has a 10 spline pinion in it. If i order a new ring and pinion that is a 29 spline will it fit in the case? I am pretty sure the answer is yes but i would rather double check first. I know i will need to replace the yoke. I am hoping that the 741 that i am about to pull out of my demon will have a 29 spline yoke on it that i can use.

The 741 gear sets fit the 741 case and only the 741 case. The ring gears are all 8-3/4" diameter for all three cases. It's the pinion diameter that was different. The 741 had the smaller 1-3/8" pinion.