Non-FX4 Regret - Aftermarket lockers available?

[Mark Turentine]

Hello all,

I recent bought my 2021 XL STX off the lot which did not come with the FX4 package. Now I'm regretting that decision, but I love the Truck.

I know that ARB has an aftermarket air locker that you can get, but having to also change out the ring and pinion and install onboard air seems too much. So, I am really interested in a "lunchbox" locker for the Dana M220 rear end, but so far have had no luck finding a manufacturer that makes one explicitly for the M220.

I'm hoping you guys might have some thoughts on options.

Is the M220 a version of the Dana 44, and if so, would a lunchbox locker for the Dana 44 fit the M220 diff?

Has anyone had a dealer install the factory elocking rear end after leaving the lot, and if so, what was your experience and ballpark cost?

Thanks!

 

[Blmpkn]

Hello all,

I recent bought my 2021 XL STX off the lot which did not come with the FX4 package. Now I'm regretting that decision, but I love the Truck.

I know that ARB has an aftermarket air locker that you can get, but having to also change out the ring and pinion and install onboard air seems too much. So, I am really interested in a "lunchbox" locker for the Dana M220 rear end, but so far have had no luck finding a manufacturer that makes one explicitly for the M220.

I'm hoping you guys might have some thoughts on options.

Is the M220 a version of the Dana 44, and if so, would a lunchbox locker for the Dana 44 fit the M220 diff?

Has anyone had a dealer install the factory elocking rear end after leaving the lot, and if so, what was your experience and ballpark cost?

Thanks!

The e-locker isn't an fx4 exclusive, my '21 stx has one. Besides 4x4 it was the only option I cared about getting.

As of right now, if you want something guaranteed to work you have 2 options, ARB or the stock ford parts. Either way is going to be expensive.

 

[Mark Turentine]

Thanks for the info. I had no illusions on the Air locker or factory cost as I've already done some of the research on those routes.

 

[sgtsandman]

It's been said that the axles that didn't get the locker have the ring gear welded to the carrier. So, you might be looking at more than a locker to do the conversion.

 

[JohnnyO]

AFAIK the only aftermarket unit is ARB. You’d have to get new ring and pinion regardless.