Curious if there is anything that can be disconnected to keep a 22RE from running that is quick and clever, less obvious than a battery cable or fuse, less laborious than removing the starter, for anti-theft situations such as leaving the truck parked in backcountry trailhead parking lots or going out of town.

 

I like removable steering wheels

https://getnrg.com/collections/quick-releases

http://www.grantproducts.com/products/view/219/

 

I have seen many kill switch threads throughout the years, you should be able to find quite a few with a quick search.

 

unplug the 2 wires at the distributor.

 

pull the efi fuse (or put in a dummy already blown one) . or unplug the coil to distributor. unplug the wires to the fuel pump under the passenger seat.