1969 Seat Belt Warning Light Installation

[Mike H]

1969 GT350 4-speed  Marti report calls for it to have the seat belt warning light, but it did not when I first got the car. I have sourced the parts to install.and I see it goes above and to the right of ignition switch  Question - what size hole do I drill? and any install tips? TY

[rdmgt500]

I went through this a few years ago. See forum post: https://www.saac.com/forum/index.php?topic=22926.0

The hole diameters are not called out in the drawing. Best to use a caliper to measure the diameter of the widest part of the socket and use a step drill bit to work up that hole size. Maybe go 1/16" smaller and then use a file to make sure the socket fits snugly. Good luck!

[Special Ed]

depends on when car was built as early cars never used both holes.

[Mike H]

March 18th build  No Park Brake Warning Light