Ive looked into possible issues on the site but i dont think mine fits under any of the ones i read about on the site .. I have a hard 1-2 shift. It only does it when the trans gauge is 1/4 from 0. And if im not on the gas too much it will hold 1st gear way too long and the do the hard shift ( almost like i had the truck in just first gear). The thing that gets me is that my trans temp doesnt really move up much from 0 and when it does itll go to 1/4 and thats when i get a fairly hard shift . Also, about a year ago the truck was at a trans shop and it got a new trans pan installed so idk if they would of been able to tell if anything was bad by just having the pan off . My friend i bought the truck off of said it always has done this since he owned it . Any ideas i really would like not to blow up my trans .