I am still looking for an exact replacement but until then I made a sleeve to go around the 3/4" new barrel. I bought a steel bushing id 5/8" od 7/8". I then used a 3/4"drill bit to bore the id to 3/4". I placed it over the 3/4" barrel, put it in a vise and squeezed the bushing around the new barrel. I think it will work. I just need to get the right length barrel.