I'm looking at getting another truck and the one I'm looking at has transmission problems. Its a 1999 4X4 7.3L Auto Trans. I'm looking for the most cost effective fix since this will just be a work truck. So my question is... Do I rebuild or replace? Where do I buy it from? How much can I expect to spend? Also I am pretty good at working on my on truck is this something I can do my self?