Yup. These originals were the ones that always vibrated and squeaked. Shortly after being issued, GM fixed that with the little tabs added near the middle. They help space it and align it off the oil pan to stop the dust shield from vibrating and rattling from the harmonics of the crank. That super annoying little squeak the originals were know for. And these annoying ones like this are super hard to find now days.
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I like solid lifter cars, big cams and cars w/ 3 pedals in them. 
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