What size tires are on a 1984 Dodge D100?
Typically, the 1984 Dodge D100 used 15-inch wheels with a tire size around P235/75R15, though exact sizing could vary by trim, axle, and wheel package. Other configurations may have used P225/75R15 or even larger 31x10.50R15 on certain 4x4 models. Always verify the specific size on your truck for accuracy.
Understanding the variability of OE tire sizes
The 1984 D100 was offered with multiple configurations and option packages, which means tire size varied depending on whether the truck was 2WD, 4x4, and which wheel and axle combination it left the factory with. Below are the sizes most commonly found on stock builds from that era, noting that exact sizing can differ by production lot and regional specifications.
- Two-wheel drive (2WD) with 15-inch wheels: P235/75R15
- 2WD variants using smaller options: P225/75R15
- Four-wheel drive (4x4) with 15-inch wheels: 31x10.50R15 (or equivalent P235/75R15 on some packages)
- Additional 4x4 or special packages sometimes used similar 235/75R15 sizing depending on the axle and suspension setup
These examples represent typical OE choices from the era, but the exact tire fitted to a particular 1984 D100 can differ based on factory options and any subsequent replacements. If you’re restoring or evaluating a specific truck, confirm the original equipment on the door placard or build sheet.
Notes on verifying the correct size
Because tire sizing can vary, the best practice is to verify against official references for your exact vehicle configuration and year. The steps below help ensure you purchase the appropriate replacement or matching tires.
- Check the driver’s door jamb placard for the recommended tire size, load rating, and speed rating specific to your truck.
- Inspect the tire sidewall of your current tires or the original spare to read the size format (for example, P235/75R15).
- Consult the owner's manual or a Dodge service bulletin for the 1984 D100 year and trim you own.
- For a highly precise match, obtain the vehicle’s build sheet or VIN-based specification from Mopar/Dodge archives or a trusted restoration database.
Accurate verification helps maintain proper clearance, handling, and speedometer accuracy, especially if you’re replacing tires on a classic pickup with original or restored components.
Additional considerations for restorations and replacements
If you’re restoring a D100 or upgrading to a different wheel/tire package, consider how changes affect clearance and ride characteristics. Larger tires can impact speedometer readings and gearing, and some wheel-and-tire combinations may require minor fender or suspension adjustments. Always verify clearances and, if needed, consult a professional with experience in classic Dodge trucks.
Summary
For a typical 1984 Dodge D100, stock tires were commonly 15-inch wheels with sizes around P235/75R15, with some 2WD models using P225/75R15 and certain 4x4 configurations favoring 31x10.50R15. Because size depended on trim, axle choice, and wheel package, the exact tire on a given truck can vary. Confirm the original specification via the door placard, the owner's manual, or build sheets, especially if you’re restoring or replacing tires on a specific vehicle.
