Plus 2 (Not S) stop light switch - help!

[Matt Elan]

My rewire of OJR is proceeding slowly. One slight obstacle is that I cant find the stop light switch. It has not got the push switch mounted on the pedal box (which is what the replacement loom assumes judging by the position of the wires) so I'm assuming it is the pressure switch in the brake lines - the big question is where? Any one have any pointers?
Many thanks for any suggestions!

[EPA]

It’s right next to the oil filter on my car
Ed

[Matt Elan]

Thanks Ed - found it! Another link in the chain completed. What fooled me was the brake pipe going from the master cylinder across the car to the servo on the passenger side. Having found the tail of wires under the carbs I see the pipe goes from the servo, across the front of the chassis then back - and there was the switch.
Thanks again
Matt