I need to change the rear wheel bearings on my 89 Probe, but I can't figure out how to get the drum off. Any help out there? Thanks!

Welcome to Automotive Forums.

Don't know too much about the Probe, but the drums on my Escort have threaded holes in the face of the drum. You screw a couple bolts into it and it prys the drum off. Some drum brakes have an adjuster you can back off to get the drum off. If you have a slot in the back of the brake plate you can use a brake spoon to back it off. Personally I like the "Big Hammer" technique. Hit the drum on the bottom and it should pop off.