better to hit kirt ( diy4x ) up on the phone these days . he is so busy he dont post near as much as he use to even over on
www.ck5.com his user name there is cybrfire .
his stuff is top notch in quality .
longer the spring the better the ride .
thinner the leafs the better the ride / flex . but requires more leafs for the same weight capacity .
anti squeak pads or Teflon liners between the leafs let them flex and move better . if your springs are real rusty in-between each other its like sandpaper trying to move .