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Re: NOT so EZ wiring
I am fairly sure you don't need a 4 prong brake switch w/your LS. I swapped an LS and 4l80e into mine and used the stock 2 position/prong switch. The TCC signal goes to one prong and the brake to the other. As VetteVet pointed out above, the brake switch and TCC switch operate opposite each other, i.e.; the brake is normally open, and the TCC normally closed, so as soon as you actuate the brake, the brake light illuminate, while also opening the TCC portion of the switch which disconnects the convertor clutch. This is how I wired mine, and it worked perfectly.
Hope this helps -
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