i have done searches for 4.10s, 3.73s and for gears... read them all and learned alot... im leaning towards 4.10s... found all info i needed except some shifting questions i have.. im curious under normal acceleration and hard acceleration what speed is first gear if you shift at 3000, and what speed at 5000 rpm... same for second gear... if i knew this i could finally decide on gears... i have an 02gt so it has the 3650 trans.. from my readings this transmission is about 100-150 rpm less on highway with 4.10s and with the other transmission... can anyone help please.