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291 Posts
New member, great site, quick question.
I want to put larger tires on my 03 Duramax, 305-70R16: 32", I had these on a 02 1500 with no rubbing or clearance issues. Also I noticed no change in transmission performance except for the Speedo being inaccurate. I overheard the dealer telling another customer you would fry Allison and computer if you ran with larger tires and no reprogramming. My opinion is it won't matter a bid, but need verification from the experts. Thanks
I want to put larger tires on my 03 Duramax, 305-70R16: 32", I had these on a 02 1500 with no rubbing or clearance issues. Also I noticed no change in transmission performance except for the Speedo being inaccurate. I overheard the dealer telling another customer you would fry Allison and computer if you ran with larger tires and no reprogramming. My opinion is it won't matter a bid, but need verification from the experts. Thanks