4 speed od or 5 speed

No idea. I myself never knew anything about these trans missions till 1-2 years ago but I'm only 21 and never messed with Dakotas or jeeps. I'd say bang for buck on a stock/mild small block these could be about the best 5 speed swap out there. But I'll know more once I get mine in.... Also, you can buy short throw shifters for these to help take away the "shifts like a truck" feel. The short throw also has the hurst bolt pattern so a factory 4 speed shifter or pistol grip will bolt right up! :D