I looked and cannot find the gear ratio of the differentials in my 2020 Lariat, It is a 3.5 EB, CCSB. On the door post it says "L9". So what is the gear ratio? The rear end is a locking differential.
Any help with this appreciated. I do not have the window sticker. Truck is a 4wd, and based on the rpm seen at highway speed I would guess is 3.31 or something close to that, 3.55? Asking because running bigger tires would for sure make it necessary to change out the gearing in the differentials.

 

3.55

 

https://lmgtfy.com/?q=L9+axle+code+f150

 

What a great animation.........and this google thing..........what will they think of next? (cheers)

 

Soooo many ways to decode that shizz...

 

And by your logic and the other DB above, there is absolutely no point in having this truck forum if one must only use google to look up answers to the questions they have on their F150. Moderators, please close the forum!! Google has all the answers.

 

And by your logic, everyone should just go to a forum and expect other forum members to do all the work for them?

 

or, in the spirit of our online community, we can choose to help out a recent joiner with a simple question.

 

Actually it did not occur to me to google it, as there are many knowledgeable folks here that should have maybe more in-depth info on a topic, but in the future I will definitely search off the forum first so the poobahs of perfection shall not be offended... oh well.

 

The poohbahs of perfection can't tolerate a little jibing, even when it's in good fun. I'm not upset over Monkeebutt's sarcasm, you shouldn't be upset over me being pointing out Captain Obvious. It's the internet, we're all in the same sinking boat until insults start being thrown, at which point, feel free to throw someone overboard.