QuestionWe pull a 1997 Dutchmen trailer which weighs approximately 8,000 lbs. which we had been pulling with a 2000 Chevy Suburban which had a tow/haul package and a 410 "rear end". We bought the Suburban used and now need to replace it. We're having difficulty locating a used Suburban with a 410. Do we need that size; and if so, can you please explain why?
Thanks for your help.
AnswerMary,
I could not find specs on a 2000 Suburban with a towing capacity lower than 8,800 lbs. I would check the rating on any particular vehicle you plan to purchase, however you should be fine with any 2000-2006 Suburban. (NOTE: I said should, I take no blame if you don't check the owner's manual or with GM before you sign the papers)
That said, the rear end ratio will affect the tow rating of some vehicles, but it will always affect the ability of the vehicle to tow a heavy load. The higher the ratio (4.10 vs 3.73 vs 3.55...) the more easily the vehicle will tow the load, but the more fuel it will consume while cruising with light loads. All the rear end ratio is doing is changing how quickly the engine is turning at a given road speed. It's not a lot, but it will be very apparent.
For example I have a 2004 Dodge Dakota with the 4.7L and 3.55 rear end, my mother had a 2002 Dodge Durango (heavier truck) with the same 4.7L engine and 3.73 rear end. Towing a 3,000 lb boat, I would have the pedal to the floor to maintain 120km/h up steep hills. Her truck towing the same boat would be cruising up the hill at 1/2-3/4 throttle.
If you're not in a huge hurry, use a lower gear and slow down.
Good luck,
Shayne Peterson
MobileHitch
http://www.mobilehitch.ca/
