And I'd hafta say, I really didn't notice a difference in performance between the two. But if a difference is to be noticed somewhere, I would expect it more in a v6 two to one piece changeover.
With a v8 car, I wouldn't waste my money on an aluminum shaft thinking it's going to give you tire ripping performance gains.
The idea behind the two-piece driveshaft is for vibration dampening when the shaft hits more of a critical speed (two short shafts are more stable than one long one). I just don't understand why GM thought it was more important in a v6 car instead of a v8.

 

thanks...but is there any differnece between the two...like better grabing or quicker acc.

 

Better grabbing, no. It's still more or less a direct connection. The one piece shaft is less weight than the two piece, which means less power robbing spinning weight that the engine has to turn. Every little bit makes a difference, but it would be a fraction. If tenths of a second mattered to you, that's one thing. But for a street car, I wouldn't go out of my way to do a changeover unless the old one had a bad support bearing, or maybe if the u-joints needed replacing.

 

yea thats the reason im replacing it i dont want to have to deal with that driveshaft again....thanks for all the good infomation

 

Lookie here, DAMN, that 2-piece SUCKS!:

"34 lbs – Steel 2pc V6 driveshaft including center bearing carrier
16 lbs – Stock steel LT1 driveshaft
12.2 lbs – 3rd gen aluminum 1LE driveshaft
12 lbs – LPE aluminum driveshaft
11.5 lbs – Stock aluminum LS1 driveshaft
10 lbs – RK Sport aluminum 1pc driveshaft"

http://www.lt1engine.com/tech/camaro...f-body-weight/

 

i told you that sht was heavy lol i forgot all about that