I had shackle on bottom of spring instead of on top on the rear. Jacked box up alittle, put a bar in shackle and popped it up on top, box sits perfect, Thankyou FC Forum!
: I had a "drop" from the front of the
: bed to the rear on my FC 150.... I ended up
: putting air shocks on the back end to lift
: it up and level things out. My situation
: was not as severe as you describe....