Hhhhmmm.

Looks "home built" to me.

-Mismatched axles.

-"transfer case" looks like a TC from a 3 axle truck. (looks like a second output shaft capped off)

-e-brake not hooked up

-welds have that "laying in the dirt with a stick welder" look.

-looks like an FE car or pickup (note rear sump) engine, not an FT like that truck should have as OEM.

Does it have a VIN and warranty plate? Post the info, and the original info can be found.

Any other plate or vehicle info placard etc?

How does it run? 4x4 work? Front drive shaft crash into anything when you hit a bump? PS work? Brakes--any wheel lockup?