Rear Spring Questions

[kevinr1970]

I tried to use the search, but I didn't find the answer I was looking for.

I have an '82 K5 2wd.
I also have an '86 1/2 ton long bed 4x4, that has has 2" lift springs on the rear.
Would these springs directly bolt on to my K5?

I know that there are at least two different spring lengths (52" vs. 56"?). What I do not know is, is this a 1/2 vs. 3/4 ton difference or can a 1/2 ton have either? Or is it 2wd vs 4x4??
What are the ins and outs of the different rear springs???


As an aside, before going to bags on his 78 K5 Blazer, Trav used stock later model ('92+) K5 (K1500?)/2-door Tahoe rear springs and a flip kit to get ~3" or rear drop; the newer model springs sat higher (like a lift spring) so the filp kit netted 3" instead of the 5"+ it would normally get.
I only want to lower mine ~3" and the springs on the '86 longbed are less than 10 years old.
Anyone have any reason this wouldn't work provided the spring length is the same?