Fix for the bumper supports issue?

[Finnster]

Before I put on a zip tie to keep the supports together, I tried putting a set screw in the side of the diff cover to reatain the pin. I could only fit a 3mm screw, and it wasn't quite enough to retain the pin (couldn't TQ enough), but perhaps if a flat spot was made on the end of the pin it would work better.

Never really tried as the zip tie has been working really well since.