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Old 08-10-2021, 06:24 PM   #4
kipps
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Join Date: Jul 2014
Location: North-central Virginia
Posts: 1,099
Re: 2012 GMC 2500HD towing disappointment

3000 shouldn't hurt it at all. I'd let it spin.

A 1970's c10 with factory fitments, such as 235/85r16 tires, 4.10 gears, and a sm465 transmission will spin 3000 rpm at 70 mph. An LS engine is much happier at high rpm's than the old-school small blocks were.
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1987 C6P V20 truck, 2010 LMG 5.3, AFM delete, 2010 Camaro exhaust manifolds, 1997 nv4500, 1991 np241c, hydroboost, 2005 14bff axle & driveshaft, drop-n-lock gooseneck, 4.10 gears, stock suspension, rims, and tires. Still a work in progress. Any questions or suggestions are welcome!
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