Quoted from jecase:
Here are some pictures of WPC-95 backbox. There are 2 screws on each side with spacers. There also is a small trim board about 1/4 in. thick and 5/8 inch wide the runs directly behind the plastic speaker panel. I think it is there to make sure of a nice flush mount of the face of the speaker panel and the botton of the backbox. I am not sure if it is really needed for home use.
It looks like you removed the original u channel that holds the MDF speaker panel on WPC-S games.[quoted image][quoted image]
Thanks for adding some pics. It’s actually the first time I’ve seen inside a WPC-95.
My back box is brand new, so I haven’t removed anything yet. It will end up being a wall hanger. I decided To convert it because I seem to gravitate toward the title options from the WPC-95 era. It seems like it would be easy enough to convert it.
With a few more pictures, measurements and a call to pinball life for some parts it looks fairly straightforward.