Fuel Injector problems of the 2002 Chevrolet K2500

I own a 2002 chev K2500hd. I have had several problems, but was unaware of this site to report these problems until now. First, the dryer switch on the ac went bad @ 34k. Second,@ 65k I had to replace the front left wheel hub assembly as talked about in one of the other complaints I read. Third, @ 95k my transfer case developed a leak and I lost all the fluid. A Chevrolet mechanic showed me a transfer case that had gone bad due to the same problem and had been used in 4wd w/out fluid in it. Another Chevrolet mechanic told me he had seen several of these and that "jb weld is your friend". So I patched the hole, and 10k later it developed a second leak in a similar location and also about this same time an electrical part (about $550) went out for my 4wd. Now at 130k it has developed a third leak! also starting @ approximately 50k, my rear differential has locked up on me several times and I have had to replace 4 cables on my tailgate. After being a chevy man all my life I think I will look at Toyota.