Recently took the plunge & bought a 2019 F-150, 2WD w/locking differential. I've never had this before, and I'm wondering what I can expect from it. Is is good for driving on snow or ice? How does it compare with 4WD or AWD? Any information would be appreciated. Thanks.

 

I have it on my 17 SD 4x4

Its a step above limited slip types IMO in that it’s a more true locker. Rear diffs with fixed tension spring type clutch packs more or less assist in both axles applying traction.

Having both rear wheels able to deliver traction is good, but isn’t close to having 4X etc. But in slippery situations be it ice, mud, the ability to lock both rears as drivers is a big help. You’ll notice, if lock is applied and a tight circle driven on near/dry pavement (should be avoided) you’ll usually experience some rear wheel hop or a binding feeling. Normal, since both rears are in actuality rotation at different circumferences and with the axle locked it causes tension/drag on the unbalanced tire rotations...

 

A locked rear on ice/snow gives much better forward traction, but too much throttle while turning will make it oversteer (aka fishtail). Play with it in a safe place so you know what to expect.

 

Thank you for the helpful information. I had the chance to use it when driving a short distance through mud. It worked great!