I am throwing a large diesel into a friend's truck, and I am wondering just what can a C6 handle for torque, with easily obtainable parts?
How about a good rear axle for this? The truck has a D60 in it now, and I know it's going to throw the carrier out the back of it in short order.

 

what do you mean by large diesel?? i have a C/6 in my 88 with 7.3 and a banks turbo, pushing 350 hp, and have no problems. i also have the sterling 10.25 rear in it, and that is equal to the d60, so i see no problem there either. just make sure you get a diesel C/6. they have heavy duty parts in them to withstand the torque of the diesel. if you get a gas trans and try to adapt it, you will scatter parts all over the road.

 

It's an industrial diesel, 12.7l, about 182hp, and 490lbs/tq in it's naturally aspirated state. I am expecting twin turbos to pick these up into the 400hp, 900+lbs/tq range. Is the diesel c6 an SAE bell housing pattern? If so, do you know which one?

 

What is the most torque/horsepower anybody has seen a c6 last behind? I know at least two people here run them behind 500"+ stroked 460s, so they have to be able to handle quite a bit, but I need a solid number to start with.

 

not sure but 500ft lbs may be pushing it.

 

The Sterling is a far "bigger" axle than the Dana 60, both in terms of ring gear and axle shaft diameter. Your problem won't be with the carrier as much as with the actual shafts. You'll be snapping them left and right. Go with a Sterling or a D70 out back. You might be able to track down a D80 also if you check around.

I already answered some of Jared's questions in another forum but just for future reference in case someone is searching for the same info, a properly built C6 can handle well over 1000hp. 500hp is getting near the limits of a stock C6.