Can you put 285 - 70 - 17 on a jeep commander 2006 without any mod?

Yes, you can fit 285/70R17 tires on a 2006 Jeep Commander without any modifications, as they are within the acceptable size range for the vehicle. However, it's important to ensure that the tires do not rub against the suspension components or fenders, especially during turns or when the suspension is compressed. Additionally, you may want to consider the impact on speedometer accuracy and overall vehicle handling. Always consult with a tire professional for the best advice specific to your vehicle.