I had good luck with the tires but others had trouble getting them balanced or being out of round. I suggest getting them locally rather than mail order so the shop can address any concerns that you may have. I had them on all four corners and feel they are loud up front with the open shoulder tread. I no longer have my F250, but now have a 5500 with 19.5's. I run the HSR front and HDR rear Continentals and the noise level is much better. If you usually drive with your windows closed, this may not be an issue - I like to drive with the window open. The PD890's did well in mud, snow, wet or dry conditions. None of the 19.5's do well in sand because they will not flatten and spread out when aired down, so they like to dig when you do not have that flotation.
