fwhitesides

wondering which insulator pads are best got a 99 rd 688 with 4inch springs and 3 1/2 inch trunnion, I`m replacing the trunnion bushings and pads and there`s a few choice`s to make , seems the bottom pads get wore first from over loading , my dump truck think they are 38,000 # or 40,000# someone said how do you tell from 44000#? and what pads should I run ? have a 10qk36c on bottom and a 10qk356a on top, thanks for your input