JZA70 448 rwhp everyday
well i had a strange low rpm clunking sound coming from my tranny. I got under there today and found that the grade 8 bolts that hold the pressure plate to the flywheel were all severed, with damaged threads! I was planning on pulling the motor for my single install any ways so im not mad about having to pull it but what would cause this? I torqued the bolts to spec, and i labeled the bolts that came from the 7m set up. I used the same clutch / pressure plate only change was the 1j flywheel which i had re surfaced??? On another note i cant believe the car still drives fine, hopefully i didnt damage anything else.