Sorry to piggyback, but the photo of Lugnutz rear spring raises a question. Our 66 Suburban has heavy duty rear suspension, according to the label on the glovebox door. My rear springs are basically like Lugnutz's, except the center 3 coils are touching each other, no gap between the coils. Are these the heavy duty springs, or is something wrong? I have never seen a picture of the HD springs. I was also told that they will make it ride rough, and I shoud put in a standard pair, which I happen to have. Any comments appreciated.
Thank you.
