rear end??

[jetratt]

Hi,
I am new to this forum. I will be buying a new 2500 HD in October. I am going to get the Sierra SLT. My question is which rear end should I get? The 3.73 or 4.10( I think I got that right ). I have a 28' Tahoe trailer that weighs in at 9k. Will probably be trading it in for a smaller toy hauler. Thanks in advance for your inputs.

[DmaxMaverick]

Diesel or gasser?

The Diesel has no rear end option. It will be 3.73. I've towed double what you intend to and the rear end was a non issue. If they did offer a 4.10, mileage would suffer. BTW, I have 33" tires on mine.

If you get a gasser, that's up to you. Empty mileage will be much better with a 3.73. It depends on where you intend to travel.

[gbeyer]

I was not aware that a 4:10 was available?

[Colorado Kid]

Originally posted by gbeyer:
I was not aware that a 4:10 was available? With Duramax it isn't. 3.73 only.
With 8.1L 3.73 or 4.10 are available. My in-laws have 8.1L/Allison 2500HD and pull 30' Hitchiker 5th wheel with a slide out. They have 3.73s and no complaints. I'm not sure there'd be much MPG penalty with the 4.10s though . . . they only get 13 MPG with their 2WD truck and 3.73s (when not towing).
With 6.0L 4.10 only.

[Jackmchome]

The 4.10 is standard on the standard HD. That is to say the 6.0 gasser. That is how it meets the 22k GCWR

[jetratt]

Thanks for the inputs. I plan on getting the Duramax. I guess I was reading the options wrong.