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Re: Back of tachometer OE
Quote:
Originally Posted by truckin 79
Can I splice emergency brake light wiring into the brake light that is under the speedometer?
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The late 80's squarebody's did this. The brake warning light was supplied with 12v when the key was on. It could be grounded, thus illuminating the light, by three different methods.
#1, the e-brake lever had a switch that would ground out that circuit.
#2, the brake proportioning valve had an internal switch that would ground out the circuit if there was a pressure differential between the front and rear brakes.
#3, when the key switch was in the crank position, it would supply a ground to that circuit as a bulb test.
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1987 C6P V20 truck, 2010 LMG 5.3, AFM delete, 2010 Camaro exhaust manifolds, 1997 nv4500, 1991 np241c, hydroboost, 2005 14bff axle & driveshaft, drop-n-lock gooseneck, 4.10 gears, stock suspension, rims, and tires. Still a work in progress. Any questions or suggestions are welcome!
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