I don't understand, I'm pretty sure my stock engined 76 L48 Vette has the starter bracket and it's installed. I do have a TH 350 behind the engine with what I assume is the stock flexplate though the stater is not totally stock. The case is stock but the armature and bendix is from a 400 with new brushes and a new solenoid and any problem I've had has been heat related.