The wagon speedo is not the same as the one on a sedan. The wagon has larger tires (unless you let Discount Tire tell you what size goes on your car) and the circuit board is slightly different. With that said it will fit and work in a 89 model, just not accurately.

I had fixed my odometer a couple of years ago and was about to finally go back to the right tire size from TireRack Tuesday night (see the part about Discount Tire). I was going to have an accurate speedo finally. Filling up on Monday night the mileage read 159 miles and it took 10 gallons to fill up. I was about to post a email asking for help with a sudden MPG drop. You guessed it's broke again and you would be right. This time it is not the gear, put one of those BB recommended ones in. May be an old chunk of the old gear stuck someplace, but bet you it is not the replacement.

Next sunny day in the 70's (supposed to be that way this Saturday) time to pull the dang cluster one more time.

Good Luck,

Paul