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Originally Posted by Eggert
Hi,
I have a 2001 Yukon XL K2500 with the 6.0 liter engine and a 4.10 rear end for towing a 10,000 lbs camper.
The only time mine gets too noisy is when it tows going up a hill at 55 mph in 2nd gear at 4,000 RPM.
4.10 is optional for greater towing power, 3.73 is standard and gives a 9% reduction in RPM, hardly much of a change.
Please don't be upset, just to cover the basics:
I am not familiar with your model and presume that the tranny is a 4 speed or 3 speed with overdrive.
Does your tranny check out and shift into high gear / overdrive?
I hope there is no slipping.
On mine, 4th gear at 70 mph is about 2,400 RPM.
Take care, Eggert  |
The Turbo 400 Transmission is a 3 speed, NO OVERDRIVE. I do have a R700 that I took out of 84 3/4 ton C20 Pickup that I receintly restored after 270,000 miles. I was thinking that I could have it gone through and rebuilt and put it in the Suburban. The truck did not have a computer, but the Suburban does. Would this be a better change than the rear end change?