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Volvo laycock overdrive
Volvo laycock overdrive












I got the idea from my buddy's table saw. Does your setup do this? I am forgetful, so I want to idiot-proof it as much as I can.

volvo laycock overdrive

I would like to set mine up so that if I park the car and shut it down with the OD engaged, when I restart it the OD will be disengaged until I hit the button again. I would love to see a sketch of your wiring setup if possible. The rifle barrel idea is completely inspired. This works real well, gives great mileage, etc. I assembled a set of 5 small Bosch relays to create a latching relay system, so that hitting the momentary switch engages the OD, hitting it again, disengages the OD. I had it chromed after welding and no one can tell the difference unless they know what to look for.

volvo laycock overdrive

22 cal rifle barrel and ran the trigger wires down thru the barrel, exiting just before top of the transmission tower ( the rubber boot covers it). Then I have a momentary switch installed in the shift ball (A Volvo shift ball), to actuate/engage the OD. On my car, a 32 Ford, to wire the OD ( A Gear Vendors unit, similar to the Volvo stuff), I used a 60's OD handle and mounted it to a 2 position push/pull switch with an LED so that when the handle is pulled, the led illuminates and the circuit is completed so that the OD MAY be engaged (kinda like an arming switch). I don't know how it would be done on a Model A, but someone has done this, I'm sure.įor my car, I'm using a different transmission case and the shift tower has a backup light switch that I used to disengage the OD. Located in the shift tower itself actuated by engaging reverse. The best way to handle the reverse lock out would be to use a switch

volvo laycock overdrive

The speedometer comes off the OD, so no adapter/reduction is needed.














Volvo laycock overdrive