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Need a rocker arm spring for my '37 SU8.
AC unit. The numbers were hard to read but I think...

856138 Mounting Flange P/N
856203 Top Cap P/N
856211 Rocker Arm P/N

The lower bellows rocker arm broke as well but can get that welded.
I think the spring broke and took out the rocker arm.

Thanks

The rebuild kit from Then and Now Automotive includes the spring.

Then and Now Automotive

AC pump 856138 is a Series F for 1932-35 Buick models 60-80-90

The AC pump for 1937-38 Packard Super 8 is number 152 3196, also Series F and uses the same rebuild kit as the Buick
Earlier 1933 to 1936 Packard models also used the same rebuild kit

Usually the only difference between the same AC Series pump type for different makes is just the rocker arm.
Then and Now may be able to tell you if rocker arm 856211 is correct for the Packard

Thank you!
Will let you know how it goes.
Pat