I've had my exhaust refurbished by Dawley (they did a great job), but they were unable to reproduce/repair the metal brackets that support the rear of the tailpipes - the bracket with studs on the outside of the clamp at 3 and 9 o'clock. The studs on my bracket are worn most of the way through and the brackets are very rusty. Any replacements out there? Or suggestions for alternatives. Thanks!