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Old 02-14-2021, 03:30 PM   #4
CousinTone
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Join Date: Jul 2015
Location: Placentia, CA
Posts: 344
Re: 1964 c20 292 3OTT upgrading to OD - need education plea

Quote:
Originally Posted by Gianyveedub View Post
https://67-72chevytrucks.com/vboard/...=313886&page=2


Post #35 is a simple relay control for the overdrive unit. I later changed the design slightly. Basically when the Governor reaches approx. 28 mph it will ground and close the circuit for the overdrive solenoid. I recommend using the Governor rather than bypassing it to prevent you from accidentally putting the truck in reverse while in overdrive( bad thing happen when you do). If you have any questions feel free to ask me and I will help you the best I can.
Wow, another member in CA, we’re rare (but work tells me I’m probably going to Dallas for an assignment...at least I can get parts cheaper!!). My only question would be in wiring the unit. I’m good with electrical and am seeing a push button in the referenced thread. On yours, did you use a push button or is it an on/off circuit...”flip the switch” to turn the OD on? My spline count is 10 in and 29 to yoke. I’d like to wire it as original as possible but keeping ease of operation in mind. Thanks for all the advice so far. Thanks.

Last edited by CousinTone; 02-14-2021 at 03:47 PM.
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