I’m having similar issues. I turn on my left blinker and my taillights flash on then reverse light on.....and when I break my tails turn off and reverse comes on (ONLY LEFT SIDE, RIGHT IS FINE). I’ve gotten pulled over for it already. So this is my main issue. (Side note my reverse lights flash...
What parts do you have? I️ was looking into airbaggit website for parallel 4link, pan hard, and control arms and brackets to hold bags in the rear. Just wondering what’s a solid brand product to go for. Something not too expensive but good quality