48re rebuild
 

ok guys not to happy at the time i just put a ats rebuild kit in my truck 2 mouths ago and its not doin any good when it goes to second gear it makes a sound and dont feel right to me so know i need to find a new rebuild kit or about a whole new tranny ats said one from them is like 4800 but any help would be nice thanks guys

Are you running a stock torque converter?

no its five star tc