[Jake Blake]

The mounting threading is integral with the body of the can, ( and there IS NO mounting bracket to hide a cut down low), so the logical choice left was cut at the top of the can. Someone else suggested cutting right inside that groove at the top, . . .  and I agreed. But when I did, I ended up slicing into the concave top, . . . and ruining it.

I've decided I agree with Chas now, and am going to forget stuffing cans.  It was a learning experience, . . . I didn't dream of what I found in that can!    But now,  I have to find an old replacement to occupy the hole left by the missing destroyed 4mfd cap. 

Any one out there have any extra old cans of this type that they would part with?