I have about the same setup in my duster. Manual steering box, TTI’s with stock Zbar, 73 up drag link / brakes. I have the poly locks in with no problems of hitting the Tbars launching the car. I’m running Falken 615’s, maybe not as sticky as a drag radial... I have a rod style torque strap that was in when I had my other K frame in with rubber mounts. I’ve not put on the current K frame I have in the car with the Poly Loc, but will be soon. I can’t speak to the failures, but clearly other guys have had them. If your mainly drag racing the car, put solids in. I bet
@yellow rose would say screw it and run solids on the street also...