i tried to use the search function, but i didnt really come up with anything i was looking for. what i am asking about is running a 56 spring in the rear of an 85 k5 with a shackle flip. my question is has anybody done this without moving the rear hangar, but using a 2" lift (4" longer) shackle instead. would that give somewhere the desired shackle angle? i would prefer to not have to move the rear mount, but if i have to i will use a front hangar. any help would be appreciated.