You should consider upgrading to the internal style lockouts. I can't access it right now but there is a vendor on Pirate4X4 that sells new hubs for dana 60 fronts. If you went to the internal style lockout, then you could get 1. 5" 35 spline axel shafts and lockouts. Then that would be tough enough for almost anything you will be doing. Factory shafts are 1. 25 31 spline outers. The weak link. I think that you want to pull? The old selectros are decent units, I have a new set on my '75. But when I go wheeling, or pulling, I pull them off and run the old drive flanges. I have heard the selectros are not very strong. The main reason I have them on my old 75 is to make it part time. You can still get the selectros from a Dana vendor, but they are spendy.
I will try and get the pirate web info and link it here later.
Michael