[ta man]

Originally Posted by Formulajones

They are good for 1000 hp so if you break one with a hole shot you're doing something.

In fact GM still uses them on their duramax's, as well as the other OEM's on their diesels and look at the power those things are making these days. Especially the torque. Couple that with the fact that they weigh over 3 tons.

My Duramax is making over 700 ft lbs. at the tire (newer models are more now) and it weighs 7000 lbs. empty with no one in it. That aluminum shaft is holding up fine. So I had no qualms putting one in my 600hp Chevelle. I'll never break it.

Not really apples to apples comparison ...Trucks have 5 inch diameter aluminum shafts to handle the torque..I would guess your Chevelle has a 3.5?