I had the berkeleying bright idea to shorten this factory strut bump stop from my S197 on a band saw. I compensated for blade speed w/ light radial cuts, I thought. Before I could complete the thought of 'I shoulda cut it w/ a hack saw like the other one' the blade grabbed the bump stop, spun it like a top and dragged it back into the blade. Safety first... I kept hands free, hit the kill switch but the damage was done. 
It's cut about 2/3ds of the way through diagonally.
Don't know yet if Ford sells these new, aftermarket is prolly out, one strut/ spring assembly is already installed w/ a shortened factory piece so I'm looking to repair this one.
Gorilla Glue came to mind first, Google returns that too.
Anything better? Whatcha got
Gorilla glue is brittle. That I think is going to be your problem. Hit the bump stop driving and it will be flexed, breaking many of the glues.
Instead, I suspect zip ties might be your best repair choice.
A zip tie will get blown off when the piece swells during compression.
Go to Pick A Part and snag another. (and some spares)
Note - Bump stops (most) are made to compress and gradually get stiffer to catch the chassis not just slam into it. The chassis repeatedly slamming into a shortened stop will start to pop spot welds or crack around them.
Note - The need to shorten bump stops is a sign that you probably need drop-spindles and or extended ball joints, look at what you are doing to your roll center.
There's no adhesive which will endure the insane forces a MCU bump stop sees.
BTW - a bandsaw works beautifully for this kind of cut but you need the right setup:
Make a fence to the left of the blade out of whatever - I usually use a big piece of AL angle and 2 C clamps. The add a stop behind the blade to prevent the work from being sucked through.
Finally, use a piece of dowel in the hole of the bump stop to allow it to rotate if the blade grabs.
A polyurethane adhesive of similar durometer, or go junkyard another one.
Just ordered Ford Racing M-5570-A F&R bump stop kit for lowering springs... and that'll do it. 
Thanks guys
