Packard Forum Index » V-8 (1955-56)

Other than the spade connectors & metric thread, is there any difference between a Packard 3 prong & a Volkswagen 3 prong switch. VW switches are inexpensive & readily available.

I have heard of the VW switch being used but if the threads are metric that would be the big difference. There was discussion a few years ago where several said they had tried the VW item but felt the switches did not hold up long term. I have no direct evidence they don't hold up or remember any comments that the threads are metric.. IIRC, it was a Wells RB402 that was mentioned.

If you do need to get some kind of adapter from stock 1/8 pipe to a metric thread size on the switch will there be enough room to mount it and the switch.. There is not much clearance between the frame and vent pipe.

IMO, I think the conversion to a standard 2 prong switch with the relay is a good move. The switches are available everywhere for very low cost and the conversions are plug and play. You can also build your own for a very low cost if you wanted to.

The VW switches screw right in with no problem. The difficulty is that the residual pressure in a Packard is high enough to not always let the TL circuit turn back on when the brakes are released.