I will be pulling my motor and trans for overhaul, and rebuild soon. 300 V8 4 bbl, fact. a/c, with 2 spd. auto sp trans. Car is going through resto. process, just want to know if original trans will be reliable for crusin' no track stuff, just road trips etc... Looks like a lot of guys are opting for th350, any reliability differences? Cost to rebuild?? Thanks, Brad