37x12.5R20 or 325/60R20 - Dodge Diesel - Diesel Truck Resource Forums

3rd Gen High Performance and Accessories (5.9L Only) Talk about Dodge/Cummins aftermarket products for third generation trucks here. Can include high-performance mods, or general accessories. THIS IS FOR THE 5.9L ONLY!
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37x12.5R20 or 325/60R20


Old 11-23-2016, 06:52 AM
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37x12.5R20 or 325/60R20

I currently have 35x12.5r17 Toyo ATs on stock rims on my truck. I recently added a 6"lift and wanted to go to bigger size tires on 20x9 rims, 0 offset/5"backsapcing. I have seen multiple posts saying that 37x12.5R20 will fit without fender trimming and others that say they need to be trimmed. Does anyone have any first hand experience? Will 37x12.5R20 Nitto Terra Grapplers G2 fit without trimming? Nitto website says they are 36.5" tall. or should I go with the Nitto's in the 325/60R20 size, 35.35" tall? Again, I am not looking to trim my fenders.

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