Anyone Install a Locker?

[Darwin]

We tow our travel trailer with the expedition and have been in some areas with loose dirt/sand where we're stuck spinning one wheel. I was looking into rear lockers and looks like Powertrax makes a no-slip locker for our trucks

Anyone have any experience with one of these? Worried about on-road behavior and noises

 

[Habbibie]

Some of the expeditions are offered with a limited slip differential, they're not all that hard to find at the junk yards and you can pay dirt cheap for a complete used assembly... you know these things never fail even if used.

Last year I did a swap from a junked 2006 with LSD to my 2005 with Open diff, I did it for snow traction to avoid having to use 4×4 but it didn't even snow all damn winter, still pulls me out of muddy construction sites alot easier.

Buying a used LSD and paying labor for removal & insulation to a cheap mechanic will run you max $700...

You will have to find one with the same gear ratio however, I dont remember how to decode differential codes but do your research

Good luck

 

[mquick5]

Some of the expeditions are offered with a limited slip differential,

Shoot, you mean there not all limited slip? And I think that's what he's trying to avoid.

 

[1955moose]

Most are but not all. That's why you need to know when changing rear fluid, the limited slip version needs the dealer additive.

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[HornedFrog]

Shoot, you mean there not all limited slip? And I think that's what he's trying to avoid.

while i was on the hunt for my 2017, i found that most vehicles were equipped with the open differential, 3.15 or 3.31. The only option to get a limited slip rear axle was to get the 3.73, which very few had. it really limited the vehicles i would consider. it wasn't anything that would show up in the for sale ad, either. i had to go to the window sticker from the VIN in order to find out.

https://www.ford.com/resources/ford/general/pdf/towingguides/16rvtt_ford_expedition_sep28.pdf

 

[Habbibie]

Most are but not all. That's why you need to know when changing rear fluid, the limited slip version needs the dealer additive.

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U got it backwards Moose, most are Open diffs, most the 4x4 expeditions are open diff, the 2wd expeditions seem more popular with the limited slip but that's not a guarantee either

 

[Black]

Pretty sure All Ecoboost ELs have limited slips with 3.73s.

 

[JExpedition07]

Pretty sure All Ecoboost ELs have limited slips with 3.73s.

Not necessarily, 2015 models were not available with limited slip. For 2016&17 the EL standard with 3.73s was equipped with a limited slip. Limited slip was not available on trucks with 3.15 or 3.31 gears.

 

[1955moose]

Think my post for locker rear ends got sent into the twilight zone. Anyhoo, Habbibie your right theirs an app you can use from info on door sticker. Or theirs a tag on one of the rear end bolts that will say 3L73 if a limited slip one that's 373 ratio.

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[ExplorerTom]

Pretty sure these guys did:
http://www.adventuredriven.com/ford-expedition

 

[LokiWolf]

Not necessarily, 2015 models were not available with limited slip. For 2016&17 the EL standard with 3.73s was equipped with a limited slip. Limited slip was not available on trucks with 3.15 or 3.31 gears.

Nope. Our 2015 EL Limited had LS. Confirmed by axle code, and door code.

 

[Black]

Nope. Our 2015 EL Limited had LS. Confirmed by axle code, and door code.

Why Ford does what it does sometimes I have no clue.

Checked the 2015 Ford Brochure and sure enough at least according to the brochure LS not even an option for any sub models.

2016 & 2017 3.73LS standard on al EL models and an option for all others.

 

[JExpedition07]

Nope. Our 2015 EL Limited had LS. Confirmed by axle code, and door code.

That’s impossible.

 

[JExpedition07]

Who makes a selectable and or auto locker for the expy? That’s what the OP seems to really want.

 

[LokiWolf]

That’s impossible.

Nope. It definitely had it.

 

[JExpedition07]

Here is the 2015 Ford Expedition towing guide for any members curious. Limited slip was not an option available on any axle ratio within the model year, ratios available were 3.15, 3.31, and 3.73 open diff

https://secure.ford.com/resources/ford/general/pdf/towingguides/15RV&TT_Ford_Expedition_Sep30.pdf

 

[LokiWolf]

Here is the 2015 Ford Expedition towing guide for any members curious. Limited slip was not an option available on any axle ratio within the model year, ratios available were 3.15, 3.31, and 3.73 open diff

https://secure.ford.com/resources/ford/general/pdf/towingguides/15RV&TT_Ford_Expedition_Sep30.pdf

And these have been proven to be inaccurate multiple times in the past.

Not sure how our 2015 ended up with it, as it was a Ford Certified used when we purchased it. It came from the factory with it, because it was on the door code. It was an 4x4 EL Limited with 3.73LS.

I saw it, put 20K miles on it. The LS definitely came in to play more than once.

Making the blanket statement that no 2015’s came with LS is wrong. Absolutes will always get you in trouble, especially when humans are involved.

 

[1955moose]

Who knows maybe the original owner had some pull at Ford. Had his Expy built with a previous years rear end. When I worked parts for Oreillys years back, their were parts I couldn't match up to save my life. I'd try up to 3 years before, and 3 after, and wouldn't match up. Happens!

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[Habbibie]

Nope. Our 2015 EL Limited had LS. Confirmed by axle code, and door code.

What's your axle code & door code?

 

[LokiWolf]

What's your axle code & door code?

2015 was totaled...We have a 2017 now.