Hi I am new to posting up here, I am an old sub owner having a 97 GMC 4X2 with 141,000 which I still own and love. I just bought a loaded 02 5.3 Chevy with 52,000, a tow package, traction control also a 4X2. The 02 has a dull sounding but fairly loud noise up front, I have seen some comments on an intermediate steering shaft. Also have seen the posts on the trannys over heating. I tow a boat total weight about 4,500, I tow from Long Island to the thousand Islands every year about 550 miles. Should I be adding a tranny cooler?