Do you know how much force it would take to twist a drive shaft whether it's a one piece or two? Drive shafts are built based on hp/tq rating, speed, rpm, vehicle weight, etc. not just the mass of the vehicle. And even though our stock drive shafts may seem more heftier than an aluminum one it is more proned to failure because of the rubber donuts and the carrier bearing. But with all things mechanical they do fail at some point and his did. Why? Who knows.
I am looking for a deal on a new or used ... but not abused straight drive shafts.
The lowest HP rating on one is 600 HP made by DriveShaft Shop Inc.
BMR makes them and here is what they say ....
The factory driveshaft in the GTO is the weakest part of the entire driveline. It's a two piece design that is only 2 inches in diameter and uses rubber mounts instead of u-joints. Not only do the rubber mounts contribute to wheelhop, they are notorious for failing on even slightly modified 6 speed cars.
I called around and was told that the GTO driveshaft is designed to be smoooooooth .. like on a Benz.. Obviously daddies little boy had an aftermarket straight shaft which can handle anywhere from 600 to 1000 HP.
That is why they are put on and they are expensive ... apparently because you have to buy the drive shaft and yoke adapter. So it is expensive, and I am just guessing that maybe the "stickey" rubber on the tires did not snap the shaft ... could be say a 100 .. or say 200 hundred shot of nitrous ???
By the way I a looking for site that sells the after market straight driveshaft. I will be putting in a Maggie with a 122 blower soon and I don't want my little goat to fall apart.
Have no clue what GM was thinking when they put in a whimpy two peice drive shaft ... from reading these posts .. I can see you people have no clue either ... well that's what you get when you want to save a buck $$$ and buy a poor man's Corvette ... Hey are the engineers at GM also covered by UAW bargaining agreement ... if so .. it would explain a lot ... what the "F" where they thinking?