Missing rubber bushings in springs?

Well... How important is it that I get new parts? I was just going to swap everything over, but im noticing those U bolts to be a real pain to get off. Maybe I should just get new parts and sell my whole 8 1/4 as is? I guess it would be less hassle? Do you know what I could even sell the 8 1/4 for? It has 3.21 gears.