2 loose rivets on my rear diffuser on gen 5

[mhpearlman]

Im sure this is a frequent occurrence with these low hanging rear diffusers but any suggestions on how to fix so it doesn't happen again? see pics

Not sure if I should remove the current rivet and use a larger, stronger one or just the same? thanks

 

[Goggles Pizano]

I would use bolt/screw, lock washer and nut.

 

[mhpearlman]

I would use bolt/screw, lock washer and nut.

Definitely more secure but tough to access. Worth a try. Appreciate your input

 

[Goggles Pizano]

Definitely more secure but tough to access. Worth a try. Appreciate your input

Can't you remove the whole diffuser to access the rivets to the blades?