Hello, I have a 93 k2500 Burban. The 4l80e trans that is currently in it only uses 2nd and 3rd gear. LIKE A POWER GLIDE. Really sucks needless to say. What I have done to it is, Replace trans filter 3 times replacesed both shift solinoinds, and added lucus trans fixer crap. Nothing seemed to fix the problem for more then a few weeks at a time. Anyone know what i might need to do other then have it rebuilt? Second I have a 93 s-10 blazer that the body fell off of and it has a 4l60 trans. What would it take to swap them? Is there any issues with computer? Are the wireing harnesses the same? I know that going to the 4l60 is not the best choice but I am stuck between a rock and Michigan ( figure that out its not hard ). If there are to many issuse then i wont do it and ill find a nice ig oak and ram it into it till it begs for mercy... :gasp: Thanks In Advance.