who's got 33''s by 12.5 on a nbs? - Chevy and GMC Duramax Diesel Forum

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post #1 of 7 (permalink) Old 12-11-2012, 05:10 PM Thread Starter
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who's got 33''s by 12.5 on a nbs?

Like the title says who is running 33'' by 12.5 on a nbs? I got some new 18" with a 0 offset and 5" backspace and wondering if I can fit some 33" by 12.5 without rubbing everywhere. Gonna just level it out
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post #2 of 7 (permalink) Old 12-12-2012, 12:10 AM
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I'm running 33x12.5x20 nitto terra grapplers on +12 offset on mine with the t-bars cranked and I did the small fender mod for no rubbing at all. here are a few shots.

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post #3 of 7 (permalink) Old 12-12-2012, 06:31 AM Thread Starter
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Originally Posted by chevysmo97 View Post
I'm running 33x12.5x20 nitto terra grapplers on +12 offset on mine with the t-bars cranked and I did the small fender mod for no rubbing at all. here are a few shots.
Cool,thanks for the pictures also. I see you used to have the 275's,was that a big difference in fuel mileage going to the 12.5?
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post #4 of 7 (permalink) Old 12-13-2012, 12:12 AM
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Originally Posted by Matthewxp View Post
Cool,thanks for the pictures also. I see you used to have the 275's,was that a big difference in fuel mileage going to the 12.5?
Hard to say because it was about 35 degrees warmer and I don't believe I was using winter blend fuel yet when I had the coopers on. With winter blend and about 20 degrees out its about 1 mpg drop

Smo, 29 - living the dream
2011 Silverado 2500HD CCSB Z71
PPEI autocal, 5" Flo-pro, Cognito UCA, tinted all around, debadged,6000k lows and fogs, 305/55/20 terra grapplers
Waiting to be installed: SDP EGR delete, FASS 150, fuel sump.

Electricians LU 325
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post #5 of 7 (permalink) Old 12-15-2012, 10:51 AM
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<----- 33 x 11.25. lowered 3" in the back, front lowered to level with rear.

large fender mod and no rubbing on stock 17" lmm wheels

2007.5 2500HD CC/SB LTZ
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post #6 of 7 (permalink) Old 12-16-2012, 09:02 PM
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Quote:
Originally Posted by Matthewxp View Post
Like the title says who is running 33'' by 12.5 on a nbs? I got some new 18" with a 0 offset and 5" backspace and wondering if I can fit some 33" by 12.5 without rubbing everywhere. Gonna just level it out
You need to be more specific than NBS... The new frame design on the LMLs allow for larger tires than the LMMs
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post #7 of 7 (permalink) Old 12-17-2012, 07:12 PM Thread Starter
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You need to be more specific than NBS... The new frame design on the LMLs allow for larger tires than the LMMs
I was talking about the Lml. But I just got some 275's on it and it rubbs a little. Thanks for the feedback everyone that posted
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