When Do You Replace Tires?

[jut703]

i'd put the thicker tires in front

Thicker tires should be in the front if ever the tires are for replacement already.

https://m.tirerack.com/tires/tiretec....jsp?techid=52

However, if the front tires have significantly more tread depth than the rear tires, the rear tires will begin to hydroplane and lose traction on wet roads before the fronts. This will cause the vehicle to oversteer (the vehicle will want to spin). Oversteer is far more difficult to control and in addition to the initial distress felt when the rear of the car starts sliding, quickly releasing the gas pedal in an attempt to slow down may actually make it more difficult for the driver to regain control, possibly causing a complete spinout.

6 Common Tire Myths Debunked

2. When replacing only two tires, the new ones go on the front.

The truth: Rear tires provide stability, and without stability, steering or braking on a wet or even damp surface might cause a spin. If you have new tires up front, they will easily disperse water while the half-worn rears will go surfing: The water will literally lift the worn rear tires off the road. If you're in a slight corner or on a crowned road, the car will spin out so fast you won't be able to say, "Oh, fudge!"

There is no "even if" to this one. Whether you own a front-, rear- or all-wheel-drive car, truck, or SUV, the tires with the most tread go on the rear.

Should you fit new tyres to the front or rear?

CONCLUSION

To give the best possibilities of a vehicle handling safely when fitting new tyres to a vehicle in pairs, it is advisable to fit the new tyres to the rear axle.

Mixing Tires | Using Different Tires | Michelin US

If only two tires are being replaced, Michelin generally recommends they be installed on the rear axle in the absence of a tire service professional's recommendation or consumer's preference to the contrary.

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