But can you say this: I made my front and rear shafts square, they are both interchangeable and I can rest the entire weight of my truck on a pointed rock supported by my driveline only, and no vibrations at 70mph. 
no i cant but i sure as hell dont want ANY weight on ANY part of my drivelines especially the weight of my whole truck..... pinions and output shafts dont exactly like that much weight on them....... plus things that are round tend to turn smoother than square.......... soooooo i'll just stick with my toyota DL's!!!! BUT I'm glad you can park your vehicle with either DL on a pointed rock without damage, gotta give you two up there!!!!! :thumpup:
