PN Search?

[BoneStock67]

You might want to check out vagcat.com ... for all your part number matching needs! You need to register and then click on "go to catalog" for a very useful online version of the Etka.
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1986 Wolfsburg Westfalia Weekender 2.1L stock
1967 Beetle, now becoming my daily driver again, after a long rest in the garage

"There are two possible outcomes: if the result confirms the hypothesis, then you've made a measurement. If the result is contrary to the hypothesis, then you've made a discovery.” -Enrico Fermi

[mightyart]

It's a ring for the front CVs of a syncro.

[Energy Concepts]

Can anyone Identify this Part?
And what it does?
251-407-328
Thanks!