Carefully run a 14mm or 9/16" tap into the old bushing. Don't run it in enough to push the blind plug out the back of the bushing. Connect a matching bolt to a slide hammer and screw it into the bushing and slide hammer the bushing out. Find a long bolt that fits the inside diameter of the bushing. Put a nut and fender washer on it to limit how much it extend into the bushing and how much it will let the bushing be driven into the bellhousing. Again, careful not to push the blind plug out the back.