Will a 66 b-body 8 3/4 fit without cutting?

According to information I have ! A 71 Demon 8 3/4 should be 57 1/8" From Drum To Drum. Depends on the year satellite but if it is 68-70 rear is 60 1/2 drum to drum 71-74 is 63" drum to drum and 71-73 wagon is 64 3/8 drum to drum.So I would say to make it fit proper you would need to shorten it and you would also have to change the dimensions on the spring perch I believe! I am sure there are more people here that is more familiar than I am so maybe they have some more information.

Bobby