I have been looking for a set of 3/4 ton axles for a long time now and i have finally found set from a 77 3/4 ton but the front axle is a full time dana 44. How easy is it to convert this type of axle to manual hubs. I thought i read something about having to have the axle machined to fit the snap ring of the manual hubs and that sounds expensive. What are the part numbers for the warn premium hubs to fit this axle and the superwinch ones? Also i see people talking about flat and closed knuckles and i don't know what that is. Will the dana 44 have the right knuckles to bolt right in to my 85 blazer? Thanks for any help.