'65 dart 225 ci accelerator rod bushing and boot.

I have taken my Holley 1 barrel carb off to rebuild choke mechanism. I've taken the thermostatic coil and connecting rod to a welder. When I took the acceletor link off the carb, I noticed the rubber bushing and boot thru the firewall were rotten. The link rod that goes thru the firewall and a housing bracket w/rubber bushings wabbles all over the place. It is suppose to rotate only. The accelerator linkage system will never work until I get a new rubber bushing and boot which fits into an interior bracket that mounts to the firewall. jeffrey356.