I have a '05 Ford F-450 (cab & chassis) with a stock Powerstroke that I pull a 24 foot tilt deck with my T190. Max combined GVW is 25,000 LBS and I am currently purchasing a new 24 foot Goose Neck with a GVW of 20,000 lbs, total combined GVW will be over 32,000 lbs. I am worried that my 5 speed automatic may drop out someday, and end up costing me more money in the long run. Any heavy puling 450 owners out there please chime in!!