Hello, I need everyone's input I'm trying to decide... I have found a 2001 suburban LT 4 wheel drive with the 6 liter with 140k on it. I also found a 03 burb with an 8.1 and 160k with the 03 being about 2k more in price. I will be towing what's in my sig an 08 rock wood sig ultra lite 31ft. 8 k loaded
The 6.0L/3.73 is rated for less than 8000 pounds. Performance wise, I would not touch the 6.0L/4-spd with any axle ratio. 8.1L or bust, well, or 6.0/newer 6-spd.
A & A parents of DD 2005, DS1 2007, DS2 2009 2011 Suburban 2500 6.0L 3.73 pulling 2011 Heartland North Trail 28BRS 2012 VW Passat TDI
My 8.1 w/ 4.10 has served me very well towing 8k loaded. 8mpg towing. 9.5 mpg in town, 12.5 mpg at 65-70. We burn 10% ethanol here. I pick up about another .5 mpg with "pure" gas.
I traded in my '03 8.0 Suburban for a 2011 6.0 Suburban and question whether the engine will hold up for 100K miles since it has to work so hard to tow my 7500 lb. TT. The slightest incline will cause it to shift down. And my towing mileage is the same for both; around 9 mpg and city driving around 10 or so. Highway is better but we are never on the highway without towing.
Dick_B
2003 SunnyBrook 27FKS
2011 3/4 T Chevrolet Suburban
Equal-i-zer Hitch
One wife, two bikes (both Electric Schwinn's with motor assist)
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