1 Fine 69

I dropped the 69 3 inches in the back with detroit springs. Now the rear casing hits the pipes and its just on the jacks! Heres the thing. I got the muffler all teh way back off. I wanan slide everything foward like 3 incehs so it wont hit anymore. I cant cut the pipe before the muffler and slide foward cause theres a bend like 1/2 inch before the inlet and i cant cut the pip after the muffler for the same reason! Just to brake in the rear i went to autozone and bought cheap pipes and cut them to make turndowns! How can i fix this!!!am i guna have to get new pipe from muffler back? Maybe shorter mufflers...i have no idea.