Anyone know how to find out what ratio the diff is on one of these trucks? I just bought a used 2009 KR. Feels like 3.55, but not sure. Can I tell by the rear diff tag? Sorry for all the noob questions, I just traded in my 2008 F250 for something lighter and it's a whole new ballgame for me.

 

I think you can tell by the tag if it is still there. I also think you can put your VIN in at a Ford website and get a copy of your window sticker which should tell you everything about your truck..

Google search will produce that website for you. I have also posted it here somewhere in the forum before. I have a PDF version of my window sticker saved to my computer and the actual sticker in my glove box. I feel like I look at it once a week still.

 

Look at your drivers door sticker there's an axle code and then look it up...

 

get all the numbers off your axle tag, and post them here

 

Put your VIN at the end of this URL and it should show you the sticker which would tell you the axle ratio: http://fordlabels.webview.biz/webvie...cker.aspx?vin=

 

Awesome. Thanks guys!!

 

Or whip out the chalk and a calculator?

 

Look on your drivers side door jam. Here's a pic that tells what's what