I'm not saying radials are bad, just that they aren't any great deal better. I run 'em on most of my rigs, because they were built for them. But some cars work better on bias plys. It seems to be that the older ones without rubber bushings in the front end get harsh and noisy with radials.
A point of interest.....Here in Sask. it is illegal to run radials on the front axle and bias on the rear. The other way around is okay. I found this out when stopped driving a '66 Chev flatdeck dually one-ton with front radials and was ordered to get them off there. It steered great like that, but no way, sez Big Brother.