One of mine broke over a year ago. I replaced them with aluminum ones....I think they are from UPR. They are secured by small allen screws. No problems so far!

 

I HAD ONE BREAK LAST MONTH ORDERED A NEW ONE. MY PARTS GUY WAS OUT AND THE GUY THAT WAS THERE TOLD BE IT WILL BE IN AND THAT THE PART WAS $25.00.. I THOUGHT TO MY SELF DANG THEY MUST BE GOLD PLATED.. THEN WHEN I WENT BACK TO PICK IT UP MY GUY WAS THERE AND ONLY CHARGED ME LIKE $7.00. I THINK STEALERSHIPS CHARGE WHAT THEY WANT TO CHARGE. THE FIRST GUY TOLD ME HE KNEW THE OTHER GUY ONLY CHARGES ME WHOLESALE PRICE AND THATS WHAT HE QUOED ME AT 25.00