I put the poly ones on my car and it rides even better than before. I think if you get OEM rubber ones they'll just wear out again sooner than the poly ones. With the poly ones I have a nice, supple ride, no harshness at all. Radius rod bushings and strut mount bushings replacement happens to all of these cars if they're driven with any regularity.
1-7/8" ARH LTs, 3" Magnaflow exh.,Spec twin disc clutch, 402 stroker , Fast 102 w/Nick Williams TB, 1000 hp shaft & axles, cam, fuel & suspension upgrades. 500 rwhp, 484 rwtq