Would like to soften up the ride of my 39 Chevy business coupe. It has a Mustang II type front end, Chevy Nova rear end. Springs and shocks were purchased from a well known engineering company. Not sure if I can mention by name the companies that I've bought my suspension parts from. The ride is rough there seems to be no "floating", at times I almost feel like the rear tires are coming off of the road and bouncing. Will be glad to answer any questions.