No current issues with drive shaft. Just think the 2 piece is for pickups. Have sticky, extreme contact continental tires. And who doesn't drive their gto above 90. I don't however cruise above 90mph, well maybe sometimes but I thought the one pice would be better all around. Less points of failure, truly straight driveline. It's 1000hp shaft but he did say it was rated at 155mph. Don't see my self running 155 anytime soon but car isn't completely stock, 380 at the wheels, long tubes, full exhaust, CAI and dyno tune with a can and pro gather in the future. So no one has a definitive answer?