Originally Posted by Tod74
So I guess the actual question I am asking is..If I go to have a drive shaft made for this car..what do I ask for?
Call and talk to the gurus at Mark Williams.
http://www.markwilliams.com/drivesha...CategoryID=126
Driveshafts are manufactured based on torque/hp requirements, as well as vehicle weight and finish line RPM.
All driveshafts have harmonic distortion in them. The key to getting one that will live long term is to either have it avoid the RPM range (driveshaft RPM, not crank) that the distortion occurs, or get it through the distortion rpm range very quickly.
Mark Williams is one of only a FEW (read 3-4) in the country that can dynamically balance a driveshaft with their driveshaft dyno.
http://www.markwilliams.com/torsion.aspx
After having gone through a couple driveshafts (one mild steel, and another a larger diameter moly), I got sick of spending money and still continuing to have failures.
I spent more than I wanted to, but to play you gotta pay. I wound up with a single carbon fiber driveshaft from Mark Williams, that they stated they had used with success in Pro Mods and Pro Stock. Also went with their billet T-400 output shaft, and billet Dana 60 input shaft.
I've yet to have this driveshaft fail... And we're launching against a brake, with boost in a 3450 lb truck.