4x4 Conversion Frame Boxing?

[Fursphere]

Hello there!

I'm in the process of converting a C10 '66 Panel Truck to 4WD. The suspension and axles are already installed (from a 70s something 4x4 rig) - all 1 ton running gear.

I kept the original '66 frame. I'm also installing a 454 / T400 / NP205 setup. The body is currently off the frame. Dana 60 Rear / Corporate 14 Front.

I keep going round and round about 'boxing in the frame, or at least some kind of re-enforcing. I don't plan on going rock crawling or anything - but I'm sure at some point I will do something stupid that is going to put a lot of stress on that original 1/2 ton frame.

Any recommendations on modifications I should make before the body goes back on? Is boxing in the frame worth all the time and effort?

thanks

-Andy

Pic before the old truck was torn down.

http://img227.imageshack.us/img227/4927/21jan02309.jpg