The factory tire size for a 1994 S-10 Blazer varied depending on the trim level and options. You'll need to check your vehicle's original sticker (usually found on the driver's side doorjamb) or your owner's manual for the most accurate information.
However, common factory tire sizes for a 1994 S-10 Blazer include:
* P235/75R15 This was a very common size.
Without knowing your specific S-10 Blazer's configuration, I can't give you a definitive answer. Check that sticker or manual!
