One of my buddies is swaping to a straight axle in his 03 Cobra and using an aftermarket setup, i dont know what its called but i think it starts with an M. The car stock with tires ran 11.88 twice , then on the third run, off the line it broke the axleshaft in half, yea the axle not the joint

 

Probably Mosher. They know their stuff, as long as you go with their recomendations you won't break it. Had their version of a 12 bolt in my 55 chevy gasser, wheel stand every pass...never broke.