While I was test driving 2012's I noticed that the e-lock for the axle was on the same **** as the 2wd/4wd. I asked the sales-kid if it was in 4wd or 2wd when the rear axle was locked and he couldn't tell me. I figure its in 4wd, but its on the 2wd side of the ****.

So, which is it Oh Might Wisdom of Ford-trucks.com gurus???

 

How about checking the Owner's Manual? just saying... I would help, but i don't know since yours is a new truck.

 

Because I was just test driving, so I don't own the truck, so I don't have access to an owner's manual.

 

According to my owners manual it works in either 2 or 4. BUT there are certain speed restraints or it won't engage. BTW you PULL the **** to engage it. I don't have it on my truck so I can't offer more than that.

 

I recall Helm's having the manuals for most of the Ford line-up, free to DL. They even had the Bronco's OM down to 1994 models.

 

You can just go to Ford.com and download the manual as .pdf also.

 

Msayler is correct. I have it in my 2012 eco boost 2wd

 

That makes sense, thanks.

 

http://www.motorcraftservice.com/pub.../12f12og2e.pdf

Pages 325-327

 

This gives just a brief video and explanation.

2012 Ford F-150 | View F-150 Features | Ford.com

 

I have it on mine, you do need to slow to below 20 mph to engage it. That's what it says on the display if you are going above 20 mph.