Just for fun, I just checked on eBay.
Looks pretty expansive, over 100$ US.
I suggest to verify at a salvage yard. I got mine (module+switch) for 25$ for the kit, at my local yard.
No problem at all, works very well.
The easiest upgrade I made to Big Bro. Plug’n play.
Jeff / 1984 F350 Crew Cab 4x4/5.8L w351 4V/ T18/ D50 4.10 front/ 8' bed.
Restored 2019-2022.
Nicknamed «Big Brother 1984», due to its soooo-looong shape & nod to George Orwell's 1984 famous novel.