JBL 116H-2 and 116H-3 owners, can you do me a favour?

I need to know how thick the top plate or the depth of the magnetic gap are on these drivers. if you somehow could measure the top plate or get me a detailed specification chart on the drivers i would really appreciate it

I hope for approx 7,1mm since this should allow me to try out a OEM C8R116H-2 , C8R116H-3 or similar aftermarket kit into 2118 baskets without having to go for separate parts with all the trouble of setting a correct voicecoil depth