What are the ford f150 rear axle ratio codes?

There are a ton of different axle codes for the Ford F-150, largely depending on model year and configuration. You can find Your specific axle code by looking at the white VIN sticker located on Your driver's side door jamb, and You might have more luck searching for the specific axle code (or even narrowing it down by model year). I'll touch on some of the more common ones, but Your results may vary here. As far as open differentials go, axle code 15 indicates a 3.15 ratio, code 27 means a 3.31 ratio, 19 points to a 3.55 ratio, and 26 indicates a 3.73 ratio. In limited-slip, H9 means a 3.55 ratio and B6 means You have a 3.73 ratio. Some electronic locking differentials include L5 (3.15 ratio), L3 (3.31 ratio), L9 (3.55 ratio), L6 (3.73 ratio), and L4 (4.10 ratio). These are just a few of many; You'll have more luck searching for Your specific axle code.