1990 Dakota 2.5/ 5spd manual A535/NP2500 gear ratio ?

Yeah, but providing replacing the trans tunnel for fitment, the NV-3500 is a lot more "340/360 friendly", lol! Talk about having to "feather the throttle" out of the hole in first though, even with the 3.49:1 ratio. Let's say 3.73 gears, 13.02, 8.06, 5.22, 3.73, 2.73. Here is a pic of a transmission fit for a C-body wagon. NV3500
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An early S-10 Chevy Hurst shifter fits but you have to make a 5/8 inch spacer and get some long metric studs, star washers, and ny-lock lock nuts and a little anaerobic gasket maker. I can’t remember the exact size of stud. I broke stock Dakota shifter power shifting on the rev limiter, had to upgrade. 4.7, homemade air intake, K&N filter, home made 3-1/2 inch exhaust large cat converter deleted. Put 70/30 mix of HD synthetic and Lucas oil treatment in the transmission, never hurt the transmission or clutch.