i need to have my transmission rebuilt because they say my 3/4 gears are gone in my Tahoe i own a 2002 Chevy Tahoe z71 4x4 i need a little help with finding the best way to go about this i have asked around shops and stuff but the prices are ridiculous and i need to do an upgrade like i want a better top end speed and the transmission to be able too handle 500 hp and 600 ibs torque i was wondering if any one could help me out with this the reason for the upgrade is so when i do get to that power in a year i want have to have it done again can any one help me out that can get deals or know the best build? thanks