[Cobrajet67]

The main difference between the 2007-09 and the later years up until 2014 is going to be the power output. The S197 chassis didn't change very much at all during those years though Shelby made refinements during that time to the driveline, suspension, steering, and brakes. The same transmission was used albeit with some minor tweaks as time went on.
2007-09 is essentially the same car.
2010 got more power, the facelift inside and out, and some minor suspension tuning.
2011-12 got marginally more power, new and better steering, further suspension improvements, stability control, was a tad lighter, and there was an optional Performance Package.
2013-14 got much more power, strengthened driveline, better cooling, bigger brakes, a minor exterior facelift, adjustable launch control, even better optional Performance Package, and a Track Package.
In addition to this stuff there were more specific things added as time went on but this is the meat and potatoes of improvements.

 

[Cobrajet67]

My 2012 F150 had a BCM output for the running lights, tail lights go bad. To get it replaced / repaired was $1200. I tried to get the BCM replaced but I could not find a BCM. Dealers said I could not replace it with one from another truck. They told me it had to be a new one from Ford, but it was out of stock nationwide.

I ended up temporary wiring some tail lights. I’ve been driving it like that for about a year and a half.
Computer problems are not any fun and not cheap.

FordTechMakuloco had a video related to this. The taillights on the high end F150s had special taillights that had water intrusion problems and would short out requiring very expensive taillight replacement. That could damage the SJB(smart junction box) which is the Ford term for the BCM/GEM in modern vehicles. I think that there was a TSB issued for it.
You can send your SJB out to be repaired at an automotive module repair service. That's assuming that the only problem is actually the taillight output on the SJB and not the taillights themselves or the wiring/connectors. Pro-Tech Auto Systems, Automotive Circuit Solutions, circuitboardmedics, Autoecm, Upfix, and Module Master are all proven and reputable companies to fix various modules. These companies have been talked about on here with good results but beware of any others. Read independent reviews and go to the BBB site to check any company out. Some companies won't be able to fix some modules from 2005 and up but some will.

 

[Cobrajet67]

I will check out more but the Ford dealer is who told me that the problem was an output on the BCM located behind the fuse box. The rest of the folks I talked to agreed with the Ford dealer that the part is not available.
Now that I have these Company names, I will follow up.
Thank you,

Donnie (STMPD1)

The BCM/GEM in 2004+ F150s is known as an SJB and the fuse box is actually part of it. All Fords have SJBs instead of the older and simpler BCMs starting around the mid to late 2000s. The dealer was just calling it a BCM to make it easier to understand for people that are unfamiliar with the newer terminology. It's possible that it's either on backorder from the supplier or that it's just discontinued now. A module repair service should be able to fix yours.