I completely agree actually.......I really regret not doing that in first place. But my warranty is actually up on the tranny and he offered to do this one last build for free so I have to let him try. I basically got screwed over.....after the third tranny I demanded that he upgraded to a 4l80e but he refused. Now my only option is either let him try one more time, or take him to small claims and drag out this process. So after this one fails I will deffenintly swap in the 4l80e. You guys think a stock with a shift kit will do the trick.....or should I spend the extra money and get a finishline or something of that nature? Could you guys also give advice on a good conversion kit for the 4l80e?