From: Chipbee40_SpamNo@yahoo.com   
      
   Hi, For the second time in 2 years I got a nail through the tire too   
   close to the sidewall for repair. First time I replaced all 4 tires. Now   
   its supposed to be bad to put a new tire on with 3 half worn ,   
   recommended to replace 2 rear, preferably all 4. that's pushing $800 for   
   a set, effectively throwing away 3 good tires. So can anyone tell me why   
   its such a bad idea? (Spares a different brand with full tread) Surely   
   the drivetrain compensates for the different wheel rotations in normal   
   driving anyway so why the problem? Traction control should compensate   
   for the worn tire slipping? Don't suggest part worn tires from   
   resellers, they are all crap. JC   
      
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