On Fri, 09 Jun 2017 09:16:52 -0700, Jeff Liebermann wrote:

Carefully remove the base from the capacitor, preserving only the base
and the can. If you're really careful, you might be able to also save
the vinyl insulator. Tear out the guts and throw it away. Install the
replacement physically smaller capacitor inside the can, connecting the
capacitor leads to the base to match the original. Solder it back onto
the PCB and you're done.

An old friend of mine who collected vintage broadcast radios would use
this technique when re-furbing them to keep up the appearance of
originality. I never considered doing this with non-classic gear before,
but it does make sense as the existing through holes can be used without
needing to accommodate the different lead spacings of the new component.
Thank you, Jeff.