what model?

[YukonJ]

How can I tell what tranny I have in my 01 Yukon XL 2500 (8.1L)? Also what rear-end gearing?

Thanks. J

 

[ScottL4619]

Put your VIN number into this website and it will tell you all of your options. The rear end type and gearing are in the "G" section and the tranny should be "M".

http://www.compnine.com/vid.php