I'm not 100 percent certain what he's asking, but I see some of his trans numbers with early spline angle on the front planetaries and some with the later spline angle, so he would be well advised to keep the proper output shaft together with the proper front planetary to avoid issues with that spline. I think '76 was the changeover year?? To the OP, are the first two trans (motorhome) you mention shorty tailstock or 4x4 style??
