In my opinion its a bad idea. Maybe people have done it and had it on for a while without problems but that doesn't make it right. First would be axle wrap, which could snap a leaf and premature wear on the u-joints and other drive trane. You have other options besides a 4-link, you could 2-link it, which is not my favorite either but it is cheaper than a 4-link, 3-link, and 4-link variations. If you want you can e-mail me off the list at
draggnrockers90@aol.com for some more info, i'm a couple hours northwest of you.