does anybody know the new axle codes on the F-150 trucks. I have searched the internet and I can only find the older ones. i'm thinking about a new truck and I want to know which axle i'm getting because I pull a trailer.

 

From the 2015 F-150 TOWING GUIDE...

Rear Axle Ratio Codes
If you do not know the axle ratio of your vehicle, check its Truck
Safety Compliance Certification Label (located on the left front
door lock facing or the door latch post pillar). Below the bar code,
you will see the word AXLE and a two-digit code. Use this chart to
find the axle ratio that corresponds to that code:

Ratio Non-Limited Slip Electronic Locking
3.15--------15----------------L5
3.31--------27----------------L3
3.55--------19----------------L9
3.73--------26----------------L6