Bill Zaleski wrote in
:

The FAR's do NOT specify "equivelant or better". Owner produced parts
must conform to the original specifications and production processes.
You are not allowed to make an aircraft part "better" unless you
obtain an STC or field approval. Owner produced parts do not require
a 337, as they are not major repairs or alterations.

True for a wheel strut, but you would be amazed at how much "decorative
trim" there is in the interior. G