Does a 1989 dodge van have overdrive?

No, 1989 Dodge vans did not have overdrive as standard equipment on all models. While some higher-end or optioned models *might* have had an overdrive transmission, it wasn't a standard feature across the board. Many came with 3-speed automatics which lacked overdrive. To know for certain if a specific 1989 Dodge van has overdrive, you would need to check its specifications (build sheet, owner's manual, or vehicle identification number (VIN) decoding).