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

The NV 3500 from a 2 wheel drive Dakota is a much better choice, these 2500's are too light for performance usage, D-100 and small B-100 vans with maybe 318's are the heaviest/highest load usage. There was a reason for the AX-15 followed by the NV3500, the service life was just not adequate in the earlier models. Jeep NV3550 is similar but somewhat different. It had a removable bellhousing. here are the ratios 1994-2004, I had one of these behind a 4.7 magnum with a modified Hurst shifter for an S-10 and somehow never broke it.
1st 2nd 3rd 4th 5th R
GM Silverado 4.02 3.21 1.49 1.00 0.73 3.55
GM S/T, Ram 2500* 3.49 2.16 1.40 1.00 0.73 3.55
Dodge Ram 1500, Dodge Dakota** 4.01 2.32 1.40 1.00 0.73 3.55
* Source unknown and possibly unreliable
** As of 1994, as per Chrysler tech and press materials. May have been different in later years. V6 Dakotas used the AS82 five-speed transmission which had a narrower range. ALL INFO FROM ALL-PAR.
I imagine that second ratio set was for V6 HD 3/4 ton,have seen NV3500 in a 3/4 ton chevrolet. I used to have a huge chiltons Dodge truck service manual that covered all ratios from 1972-1992 models. If those are accurate on that one version, that would make a dandy A body transmission, but it is large and would require significant crossmember modification. Apparently, the AS-82 is not even worth looking for, cannot find anything on it.