look for a 73-87 body style 4x4 shotbed or blazer to use. These will allow the easiest fitment, length is closest. One may be better than the other, I am willing to bet the blazer will be a better fit, but ask around. If you look hard enough you can find a nice one. Unless you want a "full time" 4x4 you want to get one that does not have the NP203 transfer case. It is a full time 60 rear 40 front, they get a little bit worse gas mileage and they run through front end parts a little faster. The full time 4x4 ended during the 73-87 body style and I think it was around 79 or 80 that it ended. Check on it. The Ideal transfer case is the NP205. The easiest way to know if one of these trucks is a sull time 4x4 is to look at the transfer case shift knob. If it is a full time there will be no "2H" (2wd high) option.
Another thing, if you end up getting a NP205 truck I have a front dirveshaft that has been lengthened for a truck with a 3-6" lift. I will sell it to you cheap cause it is just taking up space. Let me know. It is in great shape.
So things to look for. In this body style watch out for cracks in the frame by the steering box, espescially if they have bigger tires or have been lifted. This is a weakpoint in the frame, but many places sell reinforcement plates for people who plan on lifting their trucks. This all but alleviates the problem.
Since you are just gonna use the chassis the condition of the body is unimportant. But make sure that the frame is solid with no bad rust or cracks. Also beware of trucks that are already lifted. People lift trucks to make them more fun to smash on, so watch out for a cheap truck that is already lifted.
I am sure that there is more too look out for. You may want to post a new topic and call it "73-87 4x4 under a 64" or something like that. I have seen people discuss this swap on the page before so search it and a new post will draw some more focused discussion on your topic. Good luck.
Kyle
