T18 Reverse Switch

Reverse lights were staying on so I put a socket on the transmission reverse switch on a jeep t18 and backed it out.
Was expecting to see a switch with threads but this came out instead.
Couple questions:
How do I replace the switch? I put a vise grip on it just below the switch but it started to slip so I stopped.
Should one use locktite when putting it back in? Can’t believe it just slips into the top cover.
Thanks

 

your looks a little different from the spare transmission I have
is it missing floating rod
I just reinstalled with a 13/16 socket . I took a die grinder too . removed the nut splines ( driver tool now )


my goggle skills . couldn't find a replacement . leaked oil out of back

 

Took it apart, measured the depth in reverse, machined a new plunger and we have reverse lights