I swapped out the electric hubs on my 77 a few years ago and used the old hubs to make the spacer plate. The shaft from the electric hub though has 22 splines and I have only been able to find cheap hubs that fit the 22 splines. I am in Mongolia so supply of part is limited. I can get genuine Aisin hubs here but they have 30 splines. What does it take to change the 22 spline shaft to a 30 spline shaft that will fit the Aisin hubs?