<VV> Memory test -- parking brake alarm switch

[Kirby Smith]

I have a box of parts listed under one part number that I obtained from 
GM many years ago.  The part is 4889278 from Group 11.950.  The parts 
comprise a small bracket and a push switch.  The push switch is not 
unlike those used on our doors except it has a right angle electrical 
connector.  The bracket is generally triangular, about 1.5 inches in its 
longest dimension.  With the triangular surface horizontal, there is a 
small tab extending down and a larger tab extending up.  The triangular 
surface and the larger tab have unthreaded holes.  The triangular 
surface hole easily passes the thread of the switch.  The hole in the 
tab is a little undersized relative to the thread size of the switch.

The package includes Instruction Sheet No. X-889278 directing the user: 
"When using #4889278 as a Parking Brake Alarm switch on Corvair models, 
tape as shown below using commercial electrical tape."  There are no 
instructions on mounting.

I undoubtedly ordered this switch long ago expecting it to easily adapt 
to the function of a parking brake alarm switch.  But yesterday I spent 
considerable time examining the parking brake handle in relationship to 
the nearby parts and do not see any practical way that this switch can 
be mounted nearby using the bracket.  I'm not sure that there is a 
practical way with any bracket without serious disassembly of the 
steering, parking, and clutch shaft parts in order to drill holes where 
they can't be drilled with the assemblies installed in the car.

My question is: Anyone remember this part?  Was it intended for Corvairs 
in general, LM Corvairs in general, only some very late model that had a 
different design of parking brake parts than my 1966?  Am I barking up 
the wrong tree and the assembly is supposed to be mounted somewhere else?

Thanks for any help

Kirby