Re: making a 2wd a 4wd
Would be easier to find a 4wd truck like yours and just swap the cab and bed.
Everything is a bolt on except the rear mount for the front differential. cut the mount off the donor truck or fabricate one.
complete front axle(with gear to match your rear axle), axle shafts, spindles, transmission, transfer case, both driveshafts, and radio bezel. Be sure the spindles match your brake setup(rabs or 4wabs) To do it factory style you will need to change the dash wiring harness and you will need the 4x4 body control module located beside the radio. This harness also extends down to the transfer case to connect the electric transfer case motor. You might need the frame harness to get the plug for the transfer case. You may be able to create your own harness for the transfer case If you change your dash harness make sure it has power doors if you have power doors.