I replaced the gas tank in my '81 with the new
one that was not defective....  See the thread
from a couple weeks ago: "re: did I get a defective
gas tank".

The one that was removed--that was giving me crud
in the filter--is also an after-market--same as
what I put in.  Same "C" symbol, with 0409 B on
it.  The new one had 0404 B.

If anyone in the front range area wants this tank
to salvage, you are welcome.  The exterior looks
perfect; the interior looks good.  Maybe a flush
would clean out the crud.  Let me know.

Richard