another leaking tank for my 1995 944!

Has anyone heard of a problem with the fuel tanks in a 1995 940?

I bought one used but in great shape a few years ago.
Within a year it developed a fuel tank leak from a few cracks.

I couldn't figure out why so I just replaced it with one I found in
a local junk yard. The replacement tank was in very good condition.

Now it's a little over a year later and the replacement tank
is leaking in the same way! I haven't pulled it out yet but
the pattern is identical to the last time.

When I pulled the tank out the last time I saw nothing that
would cause these leaks but something obviously is.

Is the '95 944 (nonturbo) known for this problem?
I can't find any reference to it on the web.

Will the tank from a previous year fit?
I think I'm going to have a difficult time
finding another '95 in a junk yard.

Don b.