hey guys i just found this site and i have to say i love it. i have a 99 suburban 1500 with 166k miles and its slipping into second gear and it goes crazy at about 45mph. i heard the thing at 45 is the torque converter but i think i need a rebuild on the tranny how much do you guys thinkn it will cost? also the transfer case is bad. when i put it in 4 wheel it makes this awful grinding noise when it starts moving and in 2 wheel drive there is also alot of noise like a tapping noise. any ideas about the noises? thanks