Ok its not uncommon for the factory stock rear tri five Chevy bellhousing mounts to separate. And when they fail the dist cap gets broken. So I modify mine by drilling two horizontal holes and installing 3/8 bolts tightened just snug. I lock them with two nuts with a lock washer jammed between them or a lock nut or a ESNA nylon insert lock nut Its best to grind one side of the bolt head flat and bevel the opposite side. U se a shoulder bolt. not one that's threaded all the way to the bolt head. It works really well. Ive been doing this mod for decades and many high RPM side step the clutch starts its never failed. I also add a torque chain from the front of the cyl head to the frame on the drivers side. I much prefer the stock 4 point mounting on a tri 5 chevy. I first seen this done by a stock car driver at the DX station. Ugly guy nicknamed Ringo. Looked like the Beatle . Always dated the prettiest girls!