727 or A500 Yoke

I had the 518 yoke from a truck that I parted out. I even had the 518 trans sitting next to the 727 to compare splines. They are dimensionally correct in every way except the spline pitch. The A500 splines might be the same as a 727. But I just assumed they were the same as A518 when i was searching for the proper 727 yoke.