I doubt that they misprinted the numbers on the gauge face because the numbering looks just like the old gauges. As for the needles, all I did was pop them off, put on the new faces, then pop them back on. I tried not to mess with any of that stuff too much because I'm not 100% sure how it all works.
And here's another boggling thing. The tach isn't sticky when I have the clear plastic front off of the gauge box. It didn't make any sense to me, so I looked to see if the plastic face was rubbing the needle, and it wasn't. I looked to see if the plastic front, in any way, affected anything with the tach, and it didn't. I just don't understand why the stupid things won't work now.