that same bolt broke on my 99 cougar and i just put a grade8 bolt on it from NAPA and it is still holdin

1999 Cougar V6 MTX SVT UIM/LIM/65mm TB, I/H/E, Fidanza/SPEC III/Torsen, Koni/GC's, 19" Icon wheels w/ Pirelli rubber, NX Wet Kit