What you need to do is find a wrecked 4wd Taco in your area, and strip it. Here in San Diego, I find one about every three months if I'm looking. Mostly I find them as rolled trucks because the owners think that their trucks are able to fly. Once they're rolled over, go to the truck, and offer the owner 1/2 of what junk yards want for the parts and show up with cash. Make sure you find a truck with the same tranny as yours (IE, auto or manual), take the tranny, T-Case, all associated vacume lines, front diff., locking hubs, axle shafts, front driveshaft, crossmember, and possible spindle's (check with TTORA). I know it seems a little shady to be undercutting a private seller, but here, if someone is dum enough to jump their truck, their parts are unrespected fair game. Also check to see if your truck actually has the locking rear diff. Most Pre-runners I've seen, don't have a locking rear diff. It wasn't guaranteed. It was an option.
