I have Kevins turbo kit on my ls4 Murcielago. I broke the input shaft and replaced it with a 300m shaft. Less than 10 miles later and I broke the 300m shaft. I'm rear wheel drive so I get better traction and with the wide tires I have on it, I'm sure that I'm stressing the tranny more than if it were in front. Anyway, anybody have a suggestion on how I can keep an input shaft intact?