I looked at a lot of trucks before purchasing my F-150. I thought the one I bought had a locking differential, but now I'm not sure. The door plate says what looks like 19, but it could be I9.

How can I tell if I have a locking differential without crawling under the truck?

Thanks

Green Gem

 

Around your 4x4 ****, on the lower part of the circlular part there will be pictures showing you to pull the **** straight out to lock the diff. Hope that makes sense.

 

Axle code 19 is 3.55 non ls. H9 is 3.55 ls. There's a lot of Vin decoders on Google for our trucks, they've helped me find a lot out about my truck after I bought mine. Hope this helps :thumbs up:

 

Thanks for your responses. Well, I guess I screwed up. It will be my first truck without a locking differential.

Take Care

Green Gem

 

Trust me, unless you are slogging through really deep mud, you won't miss it, and really, the tires you are running and your skill as a driver matter more in these situations. The new Electronic Limited Slip program that use the ABS system effectively can route 50% of the power to the left and right wheel anyway, and on both the front and rear axle.

I do alot of deep sand driving, and have taken on some decent mud too, and the truck feels great in both. Just make sure you fully turn off the traction control before going offroad by pressing and holding the traction control button for a full five seconds.

 

sullyman,

Thanks, that is really good information.

Take Care

Green Gem

 

Glad to help!

 

I'v heard this before ,but never understood why?
If I press the button it says off,,, why hold it for 5 seconds ?

 

I think they want to make sure you really want it off, as it is really useful in on road applications. So just a quick push only turns off the trailer sway control. I guess this keeps people from accidentally turning it off when reaching for a radio preset, and ending up in a ditch in icy weather.