I have finally begun the process, tired of trying to make this one work....including not being able to reduce the gear lash, and also the input shaft moves about a quarter inch axially when turned manually, so there is evidently some play in the input side as well. But, I have not found instructions on install regarding alignment of wheel and steering. I have seen a mark on new boxes to align the output shaft before install, and of course the pitman has its master spline, so no problemo. But, I have not found anything re the splines on the steering column input, other than splines and a spring pin. So, does anyone know if there are any master splines here.....I will get the wheel centered as best I can. There are master splines on the actual wheel itself. So, if the gearbox is centered from mfr with marks, and I align the wheel, is there anything more on the splines to the box/column..... Second question that has different answers all over. Some say to drive the steering column joint up on its splines to allow room to remove the box. Others say to remove the three bolts on base of column to allow it to move up a bit. Anyone done this on the 66 year range. Mine has a large diameter bushing that contains the spring pin that gets driven out. There appear to be different types of couplings on the columns. I am just trying to align my world before laying on my back with 40 lbs of iron to remove. Thanks.