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1984 C10 4 pin brake switch question

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Old 04-11-2017, 07:53 AM
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Default 1984 C10 4 pin brake switch question

Can I use the factory 4pin brake switch to trigger the torque converter lockup on my 4l80e?

It originally came with a TH350, not sure if it ever had a lockup function.
Old 04-11-2017, 08:23 AM
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Yes, it will work fine.
Old 04-11-2017, 10:47 AM
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Yes, the 4 pin is two sets of contacts. One set is NC the other set is NO.
Old 04-12-2017, 11:07 AM
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I appreciate that gents. Now that I have it wired up, aside from driving can I test it in HPtuners? Really don't want to burn up my trans if I goofed.



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