I'm looking at buying a set of these springs:

http://www.hypercoils.com/products/hyperco-composite-leaf-springs.aspx
I have this response from the company:

You may wish to check the dimensions of your leafs against our dimensions, since the 1971 B body’s differed slightly from model to model.the overall length from center of each eye is 53 7/8”, the center of front eye straight across to the center pin is 20.5”. Our leafs are all made to a 4.5” arch as well.

my question for you is what are the spring dimensions for a 71 roadrunner? are these dimensions close? is there a refernce somewhere as to our leaf spring dimensions? thanks

before bed bump

'71-3 b-body,according to the old DC chassis book, are 58" total, 22" front segment and 36"rear segment.

thanks 446acuda!