Ford Tractor Brake Lock Arms Electric Brake 1801 2000 4000 PLEASE IDENTIFY

Description

This is a pair of brake lock arms that I purchased at auction. They were represented to be off a 1963 Ford 4000 Tractor.
I’ve never seen these before. Nor can I find anything in any parts books. They are painted blue but were painted yellow before so may be off an industrial tractor.
Instead of having the locking hooks on them, they have a system of rods that are attached to electronic switches that activated something, either lights or an automatic brake lock. One of switch mechanisms is missing half of the original assembly. The other works and still has the original wires on it. The switch mounting plates are stamped MADE IN THE USA, no other markings.
In overall good condition except for the one switch. Still have good zinc plating under the paint. Unusual parts, if anyone knows about these please let me know.