Drive shaft thoughts

I upgraded to a 5" by .125, 6051 aluminum drive shaft with 1480 u-joints that is nearly 72 inches long for my 3/4 ton 4wd truck. The shop that built it said they have customers spinning over 1300 hp and 2400+ foot pound of torque through virtually identical units, so aluminum drive shafts can be very strong.

It is amazing how much lighter the aluminum drive shaft is than the stock one that came out of the truck.