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Duramax4
08-29-2015, 19:07
I was gonna buy a C4500 was wondering how the truck perform when going down the highway. Pulling 15000lbs does the truck have any problems maintaining 120-130 kms (75-80mph)??

a5150nut
08-30-2015, 12:24
I've got a 2006 K3500 pulling about the same. Gross 21500 hooked up. Pulls real nice at those speeds. Wanted to put 285/85/16s on it but I don't want to change the gearing as it is great stock.