2011 EXT Posted November 7, 2011 Report Share Posted November 7, 2011 I have a 2011 EXT AWD if 2 tires are worn and 2 TIRES are new will that screw up the AWD?? Someone said that you have to put 4 new TIRES on you can just do 2 TIRES Any help would be great thanks. Link to comment Share on other sites More sharing options...
airmike Posted November 7, 2011 Report Share Posted November 7, 2011 I don't think it would hurt to put 2 on at a time as long as they were both on the front or both on the back and you keep the same size and brand. I wouldn't want to get slightly different sizes side to side though. If you change brands you are likely to get a small difference in size even with the same stated sizes. Here is a manufacturers recommendation--AudiAs published in their vehicle owner's manual, "rolling radius of all 4 tires must remain the same" or within 4/32-inch of each other in remaining tread depth.PorscheCayenne within 30% of the other tire on the same axle's remaining treadwear.SubaruWithin 1/4-inch of tire circumference or about 2/32-inch of each other in remaining tread depth Link to comment Share on other sites More sharing options...
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