I also have the General tires on my '04 STX. With 7,000 miles the tires are already showing good indications of not lasting very long.

 

i also have the 17" generals.at 1300 miles,i'm not at all impressed with them.planning on replacing them with goodyears.

 

Update to 'GOODBYE GENERAL' (above): after several trial and error attempts with varying the tire pressures on the new Wild Country tires, I found that 36 lbs in the fronts and 33 lbs in the rears gave the best ride and nearly eliminated the 'bouncy' rear end that seemed to be related to the bed shake. Too much air in the rear tires really messes with the ride of my XLT Screw with an empty bed.