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Quote:

i think the larger yokes were used in big block and large body cars.




correct.

my 67 8 3/4 polara has the large 1330 yoke and was only on 426/440HP cars.






Disagree, The 340 small block 68-9 darts had the bigger joints as did many other applications.

Why?? because they were stronger. But I will agree the small joints will take a lot of abuse