Originally Posted by
Mark D
For the record, the radio shack boxes were not even the correct box. They were just really close and what most people opted to use 10 years ago since they were readily available at the time. The actual screen used boxes were made by some other company (I'm not even sure by who off the top my my head) but some of the other enclosures in the car are from LMB Heeger.
If you want a TFC box with the exact dimensions as screen used you'd need to have parts custom fabricated. Otherwise, as others have posted, there are really close alternatives and nearly no one will be able to tell the difference.
Most of the other parts besides the box are available, but as with nearly everything things change over the years and there are slight variations. The large Dayton switch has about 10 different variations from parts built in the 60's/70's to what is available new today from Dayton. The Dialco Dialight lenses are still being made as well but there are subtle differences in the shape of the chrome bezel that is crimped around the plastic lens. If you care about accuracy as whole the differences add up pretty fast you're going to end up hunting for vintage era parts that are not as readily available as the new stuff.
In many cases it's tougher to find an accurate part when a variation of that part is still in production today. Instead of searching for a single needle in a hay stack now you're searching for that same needle but with a bunch of other close-but not-quite-the-same needles giving you false positives that you've found what you're searching for.