Overdrive wiring question - SmokinVette.com Forums
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post #1 of 2 (permalink) Old 01-18-2012, 04:34 PM Thread Starter
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Join Date: Jul 2008
Location: Mid West
Posts: 563
Overdrive wiring question

84 vette;
I want to have the overdrive operate only in 4th gear when the switch is ON and automatically goes off when i leave 4th.
Any idea's before i dig into wiring diagram ??
Thanks mates.
chappy is offline  
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post #2 of 2 (permalink) Old 01-19-2012, 04:40 PM Thread Starter
Smokin 500HP Club
Join Date: Jul 2008
Location: Mid West
Posts: 563
I figured it out by replacing the 4th gear switch with one that is Normally closed vs the normally open....You can buy them at napa and they come out of an 88 chevy pick-up transfer case about $20.00....Then there's the wiring fun, which is long in the tooth and a heartache to explain!!!
Run's great having overdrive only engage in 4th because you dont have any thump or feel as it comes on when you are just hitting 4th. You still have the switch option on the console.
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