Forum Discussion

beachlovingmom's avatar
Jul 11, 2013

?Gear? ratio for 2010 GMC Sierra crew cab

In looking at a previous post, on the amount of weight a TV can tow, there was talk of the 5.3 L engine and ?? Gear ratio. We have a 2010 GMS Sierra crew cab, 5.3 L, but where do I look to see this "ratio"?

Our trailer weighs 5400 dry.

The truck's owners manual is about the size of an encyclopedia. I looked on the sales window sticker, but do not see anything. In searching this site, I saw mention of looking at a sticker in glove box, but it has about 30 numbers, so unsure of what I am supposed to be looking at.

Thanks for any help!
  • donn0128 wrote:
    The rear end gear code is also on the build sheet inside the glove box

    It's the code beginning with "G."
  • The rear end gear code is also on the build sheet inside the glove box
  • You can call the dealer also, give them the vin. Only takes 1-2 mins. Or you can look on you door sticker, it should have an axle code. It may be listed in your manual. Or google the axle code. Phone calls quickest.