Okay so heres my problem, i got a 92 blazer (vortec) i had just finished putting my transfercase back in and everything was PERFECT couple hourse later after driving my revs were shopping up to 4500 - 5000 and my speed was either holding or going down. i also put a new kickdown cable(detent cable) in aswell. Im really stuck this time.. someone please help

Oh yea and my friend said it was not enough tranny fluid and put almost a whole other jug in there and now its coming out from where the dip stick does and i think second gear makes a grinding noice