cbr600rx7

I am assuming you are referring to the M1008/M1028/M1010/M1031 models that came with the Dana 60 or Dana 70 and Detroit Locker in the rear. The Detroit acts much different from a spooled or locked rear end since it can engage and disengage its self causing sliding issues especially in snow. If it's a M1009 Blazer it's just a 10 bolt and has the less capable but more driver friendly Gov lock LSD based diff. I will say those 14 bolt 4.56 gear CUCVs are monsters even with the 135-160HP 6.2/6.5 diesels. But back on topic now.

To clear up a few things the 09-11 F150 does not have the 2WD lock option from the factory. 12-14 trucks do have the upgraded switch that allows you to pull the **** out in 2WD. I presume newer generation trucks probably have the same feature. Some people have swap out the **** in the 09-11 trucks and reported success however it is still speed controlled and Advance track, ABS, and Other components can and will disengage it.

cbr600rx7

UPDATE

So I called the guys down at SPE who market a product to the 6.7 F250/F350 guys. They seem to have built a very simple and affordable product to do just what we are talking about on the larger trucks. Of course the rear diffs are different however the function and engagement is exactly the same. They feel very confident that this product will work on the F150 as well so I may sign up to be the dummy and give it a test go. Correctly they sell the diff lock kit for $50 off of SPE website and by other vendors. It uses a modified relay and from what they claim can be installed in 10 minuets.

Feathermerchant

If someone makes a useful product for F250-350 they should really try to sell it to the F150 guys because there are about 70,000 F series sold per month and most of them are 150's.

Chris's FX4

I did this on my 2011 FX4, had to get the Raptor 4wd selector switch (needed since 2011 FX4 switch can't pull out in 2wd), and the transfer case control module from a Raptor. Can lock in 2wd up to 20mph and stay locked in 4H and 4L at any speed now. Before I couldn't lock in 2wd and the locker would only stay engaged up to about 20mph in 4H and 4L.

https://www.f150forum.com/f38/e-lock...ide-mod-83937/


Interested in hearing more about the Super Duty mod though.

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cbr600rx7

A company called BRTS also makes a product for the raptor to over ride the ELD inputs as well. From what they claim it can also be used on the F150. It is definitely more expensive in the $250 range.

Chris's FX4

The BRTS is sold by Aftermarket HQ in Las Vegas, and it does work on normal F150's with lockers. I'm actually pretty sure that the Larry mentioned back on the first page is the one making the BRTS unit.

Coblanchard

I didn't have time to call, but FB messaged them about it. They said no clue if it would work on the F150. I then asked what circuits they were hooking into so I could compare to the f150 and see if it would work. Never got anything back from them. I was also considering buying it anyway. Pretty sure it will work or can be modified to work

sigma pi

For $50 id buy it if it works.

ASars

Even cheaper then SPE u can use a standard relay. I had the SPE one on my 2015 F-250 and my biggest gripe with it was it threw service advance track and diff lights and error messages as well as if u left the **** pulled out and **** the truck off it would keep the diff energized and kill the battery. Poor design in my opinion. I simply worked up a standard 4 Post relay, hooked one pin to a ground, one to a constant fused 12V power, one to the fuse for the ELD in the under hood box (soldered it to the test point on the fuse) and another on to the upfitter switche. Since the upfitter switches are switched off with the ignition it would shut the locker off when the ignition was turned off thus preventing the battery drain. I still got the error messages so I went in and added a diode (electrical one way valve) to the ELS wire. Eliminations the errors. The set up allowed me to still be able to pull out the **** for standard ELD operation unlocking over 20MPh. But it if I flipped up the upfitter then I had a constantly locked ELD reguardless of speed for off road or mud/snow driving.

cbr600rx7

Care to share any pictures or details about your set up.