Sorry to necro-post, but I ran across this thread again and wanted to add a little follow-up.
The pins that Abendx referenced did the trick. Had I known at the time that those pins, clips, adjusters, and springs came in a $19 kit from Autozone, I would have knocked the head off from behind the shield and been done with it. Advance Auto had the same kit for $38. The stealership has the parts individually, and they are really expensive. One kit does both sides.
New parking brake shoes are nearly impossible to install without removing the axle shaft. The flange is in the way and there is way too much spring tension. The key word here is NEARLY impossible. I spent a few hours on one side got it done, then got smart and pulled the 4 bolts that hold the axle shaft in, used the rotor as a slide hammer and did the parking brake in a few minutes.
If your rotor is ever stuck because of the parking brake getting stuck in a corroded rotor, knock the head off the 2 parking brake pins, spread the shoes at the adjuster end and pull the adjuster and adjuster spring out, remove the 4 nuts from the axle shaft retainer plate, and pull the whole mess off the end of the axle. Build the brakes back up without the axle shaft in place then re-install the axle shaft.
Hope this helps.
note: the Auto Zone kit has parts 5,7,8,9,10, and 11 in the diagram above plus some white lithium grease.
note 2: there is an arrow in the casting on the end of the axle and an arrow stamped into the actuator (#4 above). Make sure they are pointing the same way. Add some lithium grease to #3 and #4.