Originally Posted by Eltonnoland
I've been looking at new and used Chevy 2500's and want a 6.0 gas. As I understand it, a 4.10 is the only rear end offered on a 6.0.
This is correct. (For the U.S. other countrys may get different options)
If you get a 6.0 in a 2500hd or 3500hd you can only get 4.10
If you get the 6.0 in a 1500hd or 2500 (no hd and no longer offered) than you could get 3.73
If you get the duramax in anything (except 4500 and 5500) from day one, from the '01 on, you can only get 3.73 gears.
5.3 has the 3.08 and 3.42 in the 1500 and you can get the 3.73 with the 6.2 in the tow max package (prior to the 6.2, it was the vortec max and had the 6.0.)
4, 5, or 6 speed trannys, this is how the gearing has been on the hd line up, unless someone had the gears changed (the 1500 non hd trucks have had several optional gear/package changes since the '99s came out.)
Any question on your ratio, send me you Vin and i can run it at work, or you can just find the gear option code in your glove box.
Seems like we went thru this about a year ago on here.