Re: 700r4 lockup wiring
If you don't want to mess with a switch, it's only slightly more difficult to put in a vacuum switch and brake cancel switch. I found them to be plentiful at the junkyard and free, I believe I pulled my vacuum switch from a K5, along with a tiny blue vacuum booster. 12v from pin A to the brake cancel switch, then to the vacuum switch and you're all set.
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'20 Silverado Trail Boss ~ '17 Tahoe ~ '79 K15 Sierra Grande ~ '76 Blazer 2wd ~ '71 Cheyenne swb ~ '55 Pontiac Safari ~'50 3100 bagged ~ '80 Wife ~ Late model kids
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