trip meter possible exchange?

[Ski-me]

You'll only be able to use the 89' speedo. The 90 and 91 are electric driven and the cluster is different too. You'll probably also need to grab a new clear lense from the 89' to allow for the trip dial to come out for access.

Just be sure you get a good speedo that works. A lot of the trip speedo's get jammed up and don't work very well. If you are hitting a junkyard, bring a cordless drill to attach to the speedo cable to make sure everything works properly.