C20 to C10 Spindle questions

[tolly4503]

I bought spindles from Summit in the closeout section for $75, as I'm wanting to got to 5 bolt disc brakes, figured I wouldn't have to change my cross member this way. I assume the balljoints and maybe tierods are difference between the 1/2 and 3/4 ton. I also have access to a whole frt suspension from an '84 c10 so I can use any parts off that too. I'm just looking for some help deciding the best way to do his swap. Thanks

These are the spindles I got
http://www.summitracing.com/parts/mmc-63173