What is the 1988 Chevrolet s10 pickup tire size?

There's no single tire size for a 1988 Chevrolet S10 pickup. The size depended on the trim level, options selected, and whether it was a 2WD or 4WD model. To know the correct tire size for a specific 1988 S10, you need to check one of the following:

* The sticker on the driver's side doorjamb: This sticker usually lists the recommended tire size and inflation pressure.

* The owner's manual: The owner's manual will specify the recommended tire sizes.

* The tire sidewall: The tire size is printed on the sidewall of the tires already on the truck (if they are original or correctly sized replacements). This will be a code like P195/75R15 or similar.

Without more information about your specific 1988 Chevrolet S10, it's impossible to give a definitive answer.