Happy to be part of the forum. I drive a 1970 challenger convertible - 318-3 speed - that I have owned since 1974 (48 years). What's prompted me to join is a desire to swap out my NP-230 3-sp for A-833 4sp transmission. Knowldge-wise, I'm better than average, but nothing near a mechanic. I don't have a local MOPAR guy, so I hope to pull insights, guidance from the forum. Thanks.