1994 Dodge Dakota

Hi Jim...I had a similar trans experience with a full size 93 Dodge truck years ago.If it's the same type of trans,the fix might be the same.
The trans worked fine but it turned out that the engine computer would'nt activate the overdrive and this when I was in the middle of Michigan on a long road trip so I really needed that extra gear with 2500 miles to go.

I talked to tech at a Dodge dealership out there and he said that overdrive is controlled by the engine computer which basically grounds the 12v circuit for the overdrive.There's a plug near the back section of the trans with two wires and if the return wire to the computer is grounded,the overdrive will switch on.I wired that return wire through a $2 toggle switch to ground and had a manually activated overdrive after that which got me home no problem.