Wheel/Tire Mounting Question
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    1. #1
      Junior Member JML's Avatar
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      Wheel/Tire Mounting Question

      My almost-new summer tires have only 3569 miles on them. They're mounted and balanced. They were not marked for position when they were removed by my dealer. Any suggestions on figuring out which corner to put 'em on? I can always put them on the car and then go to the dealer (assuming they will be open for service this month).

      Thanks.
      2013 S60 T6 R-Design Black Sapphire / Climate / Navigation
      IPD Rear Anti-Sway Bar, Front & Rear End-Links, & Skid Plate / Michelin Pilot Sport 4S (summer) / Michelin Pilot Alpin PA4 (winter)

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    3. #2
      Member Veefifty T5AWD's Avatar
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      As long as they're rotating in the proper direction (assuming they are directional), it doesn't matter where you put them, especially with only 3.5k miles on them.
      Logan

      2015 S60 T6 AWD R-Design Polestar
      2008 S40 2.4i - hers

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    4. #3
      Junior Member rocketscience55's Avatar
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      Tread depth gauge to determine which tire should go where. The front tires will wear faster than the rears, so you could use a tread depth gauge to see which tires are worn the most and put those on the rear. Main thing, if 2 tires have 9/32nds tread and the other 2 tires have 8/32nds tread, you'll want to match the same tread depth on the same axle. What you do not want is different tread depths for tires on the same axle (i.e. front or rear). 1/32nd difference is not an issue, but over 3/32nd is not ideal.
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    6. #4
      Junior Member JML's Avatar
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      Thanks. I have a digital tread depth gauge, so that advice is what was hoping for! The tires aren't directional, but asymmetric.

      I do know that with a Road Force balance, the installer tries to get an optimum setup for the tire location, but I guess I can always have that checked after I put the wheels on the car.
      Last edited by JML; 03-20-2020 at 03:40 PM.
      2013 S60 T6 R-Design Black Sapphire / Climate / Navigation
      IPD Rear Anti-Sway Bar, Front & Rear End-Links, & Skid Plate / Michelin Pilot Sport 4S (summer) / Michelin Pilot Alpin PA4 (winter)

    7. #5
      Junior Member Rrrracer's Avatar
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      Best tires always go on the front. Steering is important
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    8. #6
      Junior Member rocketscience55's Avatar
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      Quote Originally Posted by Rrrracer View Post
      Best tires always go on the front. Steering is important
      I was always taught the best go on the rear because you can't steer the rear. However if you follow that logic your front will always wear down first

      https://www.tirerack.com/tires/tiret....jsp?techid=52
      2019 XC40 T4 FWD, Momentum with Premium and Vision Package - Hers
      2013 C30 Polestar #141/250, Mototech exhaust, Volvo Skid Plate, RacingBeat RSB, - Sold
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    9. #7
      Junior Member JML's Avatar
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      I just remembered reading that on AWD cars the better tires go on the rear, not the front. Isn't that right?

      See this thread.
      Last edited by JML; 03-20-2020 at 08:46 PM.
      2013 S60 T6 R-Design Black Sapphire / Climate / Navigation
      IPD Rear Anti-Sway Bar, Front & Rear End-Links, & Skid Plate / Michelin Pilot Sport 4S (summer) / Michelin Pilot Alpin PA4 (winter)

    10. #8
      Member p.rico's Avatar
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      The better tires always go on the rear, regardless of drive. You can deal with understeer and front hydroplaning better than with rear oversteer. AWD will help to mitigate the concerns with wheel slip.

      However, we're probably talking of tires that will be near each other in wear with your mileage, so it all will be moot. I'd just figure out which tire from each side of the car is lower than the other if you can measure it. After 40k miles my tires only measure about 1/32" difference from front to rear and I've only rotated them once (General G-Max AS-05's).

      Speaking to the comment of tire difference; you don't want to have tires more than 2/32" apart in tread depth on an AWD vehicle.
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    11. #9
      Member msmith's Avatar
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      Quote Originally Posted by rocketscience55 View Post
      I was always taught the best go on the rear because you can't steer the rear.
      Yup, me too.
      In the driveway: 2012 S60 T6 AWD | Black/Beechwood | Premium/Climate/Convenience Packages | BLIS | Sunroof | Active Bending Bi-Xenon | iPd Skid Plate | TFT DIM upgrade (mine), ... Former - 2006 S40 2.4i M56
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    12. #10
      Junior Member JML's Avatar
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      Thanks for all the advice. Measuring depth at 4 points or more on each tire, two of the tires were at 8/32, with the other two at 7/32 or 7/32 & 8/32. Given the 1/32" or less difference, I put those on the rear; the consensus seems to be that a 2/32" difference is the measurement that would mean putting the tires with deeper tread on the rear, and the dealer service manager agreed.
      2013 S60 T6 R-Design Black Sapphire / Climate / Navigation
      IPD Rear Anti-Sway Bar, Front & Rear End-Links, & Skid Plate / Michelin Pilot Sport 4S (summer) / Michelin Pilot Alpin PA4 (winter)

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