Quoted from Acampero:Is the Shaker easy enough to install? I started doing some prelim research and it looks like you need LE roms in the machine to make it work since the LE shipped with a shaker?
You need to change the roms and the PAL to the LE version. The hardest part is drilling the cabinet bottom to attach the shaker. I recall it taking about 30 minutes for everything. This is the only modification I have/would make to my machine. It turns a good game into a great game.