slipyoke

No part # but all you have to do is look on the many driveline and parts suppliers websites. Theirs Denny's driveshafts, Moser engineering, Randy's ring and pinion, Mancini Racing just to name a few. Summit and JEGS might even sell them.

BTW: it is a must to measure your driveshaft with the yoke your going to use as all are not made exactly the same. It's always a bummer to lay your money down saying cut me a shaft *** long and install a yoke that's slightly different in length and have it not fit your car. Had a buddy that wouldn't listen to me and did that. He had to go back and pay again to have the shaft cut down to the correct length and re-balanced.