is there a kit for 67-72

[luckyss]

i was thinking of bagging my truck72 with trailing arms although i am only going to do it if there is a "complete kit" with nothing else that i may need, although i might upgrade later, i dont want to tear into my truck over the winter only to find that i need a million other parts, that i dont have or havent budgeted for and not be ready for the spring, thanks guys

if no kits, and i lower it with spring and such for now til i buy everything i need for later, is it a pain to just do spring in the front or will that screw things up until i do it right