273 adjustable rocker arms

Jadaharabi said

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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

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You're right about that... I looked it up too fast, and gave the wrong number. my bad.
I did use the 5/16 ball adjusters.
Crane quit making the 5/16 ball 7/16-20 adjusters a few years back, (I was pissed) but I'm glad to see them in production again :)