Where is the overdrive button on a 1994 Dodge Ram 250 Van?

The 1994 Dodge Ram 250 van doesn't have an overdrive button in the traditional sense. Overdrive is controlled through the column shifter. To engage or disengage overdrive, you'll need to move the shifter. The exact position to disengage overdrive will depend on the transmission type (automatic or manual) and the specific shifter markings. Consult your owner's manual for the correct procedure. If it's an automatic, there's usually a position like "D3" or "2" that will disable overdrive.