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Old 11-10-2023, 09:02 AM
Attacking Mid Attacking Mid is offline
Join Date: May 2017
Location: Colorado
Posts: 405
Attacking Mid is on a distinguished road
Originally Posted by cn90 View Post
Tread DEPTH is what matters. For AWD vehicles, if you replace only 1-2 tire(s), as long as the depth is the same as the existing tires, you *should* be fine.
The only time this would be correct is if the tires are the exact same make/model/size. Tread depth when comparing different tires is meaningless, as they can have significantly different circumferences even though the stated "size" is the same. Rolling circumference is what affects the transfer case. Some tire mfgrs will state this as revolutions per mile.

E70 2010 3.0 M57 AT Titanium Silver with Black Leather
E53 2004 3.0 M54 AT Toledo Blue with Gray Leather
E83 2008 3.0 N52 AT Silver Gray Metallic with Black Vinyl
E46 1999 2.8 M52TU 5MT Black with Tan Leather 250K+ miles (Sold, but not forgotten)
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