Stuffing ANYTHING in those holes will do nothing, the rubber sits too loose in the housing(they are not the only problem). That mount is made up of two 1/2" wide rubber circles with holes in them spaceed out to span the width of the mount. The only solution short of my mount is to try and fill the void yourself with poly without removing the rubber, it's not exactly easy, it's messy, and your car will still sit for 3 days while it hardens.
I'ld be more than happy to help you out, just give me the chance.
Over 50 satisfied customers
and i have 3 rears ready to ship.
