does anyone have any info on front sway bar to frame bushings on a 1990 holiday rambler chevy p30 motorhome chassis that has an 1.5" sway bar. every part catalog and parts store only lists up to a 1 5/16" bushing. i have measured the bar with an open end wrench and a digital micrometer and it's definately a 1.5" bar. my bushings are wasted and it's driving me nuts but i can't find the correct size anywhere. thanks.