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3.0L duramax


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So I'm getting a leveling kit installed on my truck soon and thinking about running 33x12.55R20. Anyone running 33's and how does your shift points feel? Also is anyone making an exhaust for the 3.0 duramax or a tuner? Any information will help. 

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Stock 20s are 33”. 22s are very close. 18s are like an inch shorter than the others.

 

I haven’t seen anything aftermarket for the baby Duramax but I would think twice before voiding the warranty on that puppy. It’s totally unproven at this point. Stuff could get really expensive.

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