273 adjustable rocker arms

'63GT said
For simplicity sake, I stuck with the ball end, so that I could use the same pushrods. It's the Crane 99680-2 (pair w/nuts)

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I noticed that on the 99680 the ball on these is a 3/8.

Where on the 66770as it uses a 5/16 ball. Did you go to a larger push rod in diameter.

66770as | JEGS