I ordered a "med duty suspension" seat system from Hewes today. I have to remove the stock seat and cut a few inches off the box it sets on then attach the new system to the seat and the box. The nice lady I talked to said she will send me directions. I will need them! I have never cared for the stock Hewes seats. So it is a $ 230.00 deal plus shipping. They have another seat that sounds like a tractor air ride for a mere $1,200.00! I will let you know the results.