Ezgo Off Road Cart. Rough Ride. Rattle

[deerhunter88]

Just curious to what some of you have done to make your cart ride comfortably off road and stop some of the squeeks and rattles.
I lined the back folding seat with a cheap yoga mat from walmart and also lined the metal rails it sits on to keep it from rattling, and it also keeps items from sliding on it. I also swapped out the leaf springs with some heavy duty leaf springs but that could have made the ride worse.
The windshield makes a lot of the noise but the noise mostly stays in the cab.. Cant really hear that as im driving to you.
Cart has a 6" spindle lift with 8" rims and 22" tires. I have another set of rims, I think they are 12" with 23" tires. Would the bigger rims and tires make the ride better? What else can be done? Does new shocks help much?