Can it be done, absolutely. Is it easy, no.
If you were dealing with an 80's vintage vehicle it is not an issue, I have done many conversions for customers.
With the Trac, you will need, a complete front axle asm, complete front suspension, drive shaft, transfer case, ensure all gears are the same ratio, many computer components, switches and dash components and many other things I am sure I am forgetting.
Basically, this is one of those vehicles that unless you had a scrapped Trac in front of you, I would not do it.
It would be cheaper to trade yours in and buy what you want.