fordtrucknut

ok i was wondering i have a 92 f150 4x4 with the single shock front end, it sits nice front and rear, but the rear sags when i put a load in it, now before i go get new shocks, which it needs, i was wondering would the rear springs and front coils off a f250 fit on the f150?? also i know where a parts truck f150 is with the duel front shock setup on it, it looks like it will fit, just drilling out the rivits and taking the lower shock mounts off the axles, would you recomend this? i'm not worried about ride quality it is just a truck but i haul alot of wood and other junk all the time, and i'm trying to do this without going to a 1000+ dollar lift kit i dont want the lift i want the strenght

thanks