The original tires used on the Pre-Ranger are Goodyears from the Maisto diecasts (as seen on the rear axle). They were kind of small so I upgraded to the Satco/Aoshima Bridgestone Desert Duellers (shown on the spare). The wheels are from Aoshima, and came with the Superswamper tires parts packs.
I have not touched this model in four years, at least I recently started looking at the model car sites. Thanks for the comments.
RIchard O.
modeljeeper