HINSON GTO Aluminum Driveshaft 800HP GTO Replacing your stock weak two-piece GTO driveshaft with the one piece HINSON GTO Aluminum Driveshaft is one of the best modifications you can perform to the 04-06 GTO. Drag Shaft Horsepower Rating 800hp. Tube Wall Thickness 0.125". Tube Finish - Natural (Polished shown in pictures). Yoke - Standard 27 spline (Forged Chromoly shown in pictures). Critical Speed Rating - 160mph or 7,800rpm. This GTO Driveshaft works for all 2004, 2005, and 2006 models. Enjoy smoother shifts, less rotating mass for more horsepower to the rear wheels, and better throttle response. Features a dual pattern differential flange that will work for both auto and manual transmissions.