Nick
My ‘37 has the hydraulic switch, as others discussed earlier in your thread. My ‘46 has the mechanical switch shown in John’s photos. My 2 cent opinion is the mechanical switch is better in terms of installation and hassle relief. As others indicated finding the correct banjo fitting for mounting the switch directly on the master cylinder is a hassle. Added to that, it offers just one more potential brake fluid leak to deal with.

Last edited by 46Sparky; 07/20/2026 9:03 PM.