Can anyone tell me the difference in the final drive ratios of a standard 1966 833 and an overdrive 833? I have a change to get an OD trans and was wondering about putting it behind the 426 in my 64 Polara...the 3:91's I just installed are kinda harsh. Thanks Jeff Adams 64 Polara ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.