I just picked up my first 4wd (84 Blazer 383/700r4/NP208/10b) and I have been reading alot about different mods like the B52 kit and the 56" rear spring. I want to put a 14bff out back and a D60 up front with 52" or 56" springs in front and 64"ers out back but my question is I hear alot about having a good shackle angle. Could someone show me what the perfect shackle angle looks like? From the little bit I have read my guess is a slight angle rearward. Thanks for the help guys. BTW: I have been learning alot from all the info on this site. I just wish I would have bought a Blazer years ago. I didn't realize you could do so much to them just by swaping out stock parts from other trucks.