72,91,92,96,99 Cadillac C-10 Pickup truck

[usmcchevy]

I can't wait to see pics of this. Sure it might be a pain and in others opinions not worth it, but if you already have the motor it will be interesting and different. So go for it!
The trans, a 4L60e will easily handle your power and torque. A 80e will just take more power to turn, doesn't have quite as low of a OD gear and it weighs more so it will hurt your economy and performance. Good luck and remember we love pics!