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Old 03-10-2020, 12:36 AM   #1
tdangle
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Revised Lockup TC Wiring

I had my lockup torque converter wired up as most do. Power to the solenoid thru the brake/cruise switch and a 4th gear pressure switch to lock up when in 4th. this setup caused a lot of lugging unless you really stepped on it to downshift to 3rd. With my new engine it was even worse. I installed a vac switch and electronic delay. What a difference!! Works much better now.
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1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC
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Old 03-10-2020, 08:21 AM   #2
toolboxchev
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Re: Revised Lockup TC Wiring

Pics of your set up, please.

Lets see your toolboxtruck also!
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Old 03-10-2020, 10:35 AM   #3
68Gold/white
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Re: Revised Lockup TC Wiring

Where did you gt the vacuum switch??? I need to buy one for a project of mine.
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Old 03-10-2020, 05:34 PM   #4
tdangle
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Re: Revised Lockup TC Wiring

Quote:
Originally Posted by 68Gold/white View Post
Where did you gt the vacuum switch??? I need to buy one for a project of mine.
Amazon: https://www.amazon.com/Superior-K058.../dp/B0778KLW7H

The delay module is what really made this work. I have not figured out where I got that yet. I'll post as soon as I figure it out and a wiring diagram
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Old 03-10-2020, 06:20 PM   #5
HO455
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Re: Revised Lockup TC Wiring

Quote:
Originally Posted by 68Gold/white View Post
Where did you gt the vacuum switch??? I need to buy one for a project of mine.
I know Summit and Jegs have them.

https://www.jegs.com/c/Transmission-...switch&Tab=SKU
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.
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1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo
If it breaks I didn't want it in the first place
The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377
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Old 03-14-2020, 06:58 PM   #6
68Gold/white
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Re: Revised Lockup TC Wiring

Bringing this to the top for someone
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Old 03-14-2020, 08:19 PM   #7
Rick Bollinger
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Re: Revised Lockup TC Wiring

Thanks Gold/White
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