2008 gmc sierra rear end question
 

i have a 2008 gmc sierra sle with the 5.3 vortec motor and i think i have 3.73 gears but i dont have a button for the traction control what rear end do i have then

I have an '08 Silverado 5.3L with the 3.73. So that would be my guess too. But if you have the window sticker, it's on there.

Go to compnine.com and put your vin number in the vin decoder/rpo finder under the research tab and it will tell you all about your truck.