Check the tyre size shown on the door jamb sticker, in the handbook, or on your current tyre sidewall. If your vehicle lists more than one approved size, match the exact size along with the recommended load index and speed rating. For 4x4s, it is also worth confirming wheel width and clearance, as this size is relatively wide and can be affected by aftermarket wheels or suspension changes.
Choose a load index that meets or exceeds the vehicle manufacturer specification, especially if you tow or carry heavy loads. Many tyres in this size are available with higher load ratings suitable for large 4x4s, but the correct choice depends on your axle weights and the placard recommendation. If you regularly tow, prioritise the correct load rating first, then select a tread pattern that suits your driving mix.
Highway-terrain tyres are typically quieter and more efficient for mainly tarmac use, making them a strong match for long-distance driving. All-terrain options add tougher construction and more open tread for gravel, tracks and muddy access roads, usually with a small trade-off in road noise and rolling resistance. Pick based on where you drive most, then filter by the correct load and speed ratings for your vehicle.
Mixing sizes is not recommended, and it is especially risky on permanent 4WD or AWD systems because different rolling circumferences can strain the drivetrain. Keep all four tyres the same size, and ideally the same brand and tread pattern, with similar tread depth. If you are replacing a single tyre, match it as closely as possible to the existing tyres and consider replacing in pairs or a full set to maintain balanced handling.
Use the pressure listed on your vehicle placard as the starting point, as it is set for the vehicle weight, suspension and intended load. Pressures often need increasing for heavy loads, towing or sustained high-speed driving, and they should be checked when tyres are cold. After fitting, recheck pressures regularly and adjust to the manufacturer guidance to keep wear even and handling predictable.
