I have read alot of contradicting information online about differentail identification. With the info below can anyone tell me what I have in my 2006 F-150 4x4 lariat, 5.4.

Door sticker code is 26

diff tag says:
3 V 910 B
3 73 9 75 5K12.

Pretty sure it is a 3.73:1 (not limited slip) with a 9.75" ring gear. My problem is that the stick code is 26 and some sites say that is a 3.55:1.??

 

The diff. tag says it all. It's a 3.73 ratio, 9.75 housing (ring diameter actually). Good axle, good ratio.

 

OK, Thanks! Not limited slip, correct?

 

Correct - this diagram explains how to read the axle tag:


(phone app link)

 

Thanks for your help!