I am driving a 2011 Tahoe with a 5.3 litre engine. I am not sure of the rear end. I have the six speed manual transmission. I am pulling a Keystone travel trailer. 4800 lbs empty. I am running in four...
Too much? More like barely enough. 2500 is on the low side but OK on the flats. You may want to be 3200 to 4800 climbing or descending a hill. Peak torque is probably close to 4000 rpm and is good all day long.