ifs bushings

[Mr. Big Block]

hey yall, i have an 88 k35 with a 454. and yes i got stuck with chevys brilliant ifs design. unfortunatly i dont have ten grand to do a straight axle conversion, but i at least need to help out my suspension a little. i want to put in all new polyerthane bushings. my problem, i cant seem to find the four bushings that hold the pumkin in place. this really sucks because i had to sawzall one of them out. id perfer some sort of aftermarket upgrade, i dont want to go to the dealer for crappy rubber ones, they just suck.any help would be awsome. thanx