1973-1990 dodge 1/2!ton 5 lug disc brakes. What is the diffrence in years and parts? What fits what, which caliper is easiest to get? Reason I'm asking is I found someone who would tackle the exspence and design of the dodge truck dropped spindle that a lot of folks want, but looking for an easy bolt in solution. If this works out, they would look into aftermarket pro-touring suspension conversions for 1962-1971 & 1972+ Dodge trucks. Any info or guides would be great.