I know nothing about the sizes of available spring bushings. Do the bushings have to touch in the middle of the eye, or can there be a gap between them? I am looking for some spring bushings that meet all of the following: 1. Must work on a stock leaf spring from an '89 C1500 (63" spring?) 2. Must use a 5/8" spring bolt. 3. These springs are replacing some 3" wide Ford springs, so the bushing has to be wide enough to be used in a spring hanger that is 3.5" wide. Where can I (affordably) buy these?