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Hey guys I'm new to the forum and I do not know much technically about trucks. I am lifting my truck 6" and was wondering if I would need to change my gearing if I put 37's on it. I believe I have 3.73 gearing right now. Thank you all for your help!
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@CustomOffsets do you know the answer ?
Jim
2006 ~ 2500HD, Big Horn Edition, 5.9, 4x4, Q/Cab, 48RE, L/B, 3.73, S&B CAI & Snout, ProFlo 5" S/S exhaust, Smarty Touch, Oil ByPass Kit, 60 gal main tank, 110 gallon in-bed tank, XX-Fuel Filter System, Coolant Bypass Kit, Mag-Hytec front & rear end covers and trans pan, 285 x 70 x 17
"Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children’s children what it was once like in the United States, where men 'were' free." ~ Ronald Regan
37s with 3:73 can't be any worse than 35s with 3:42s which plenty of us are running . Your gears aren't ideal for 37s but it's not mandatory to change them. You'll notice it's a little sluggish off the line but that's about it.
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2013 Laramie 2500 CC. Warp tuning on RaceMe. 2 inch level w/35s.
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35s on 3.42s is actually REALLY hard on the transmission, more so if you drive with a heavy foot. 37s on 3.73s would likely carry the same logic, but you'd need to do the math on it.
I'd suggest a regear to 3.83 or 4.10 to be on the safer side.
Could you do it without a regear, yes. Will it be fine, yes as long as you be mindful of your right foot.
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2021 3500 Mega HO DRW
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Thank you guys for the input. My lift, wheels, and tires are put on hold. Have to rebuild my transmission. It's getting pretty bad, slipping quite a bit, and does not smell good. It's a bummer but has to be done
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