Cloyes Made a steel-to-steel timing get set MANY yrs. I know this firsthand Because I have the Last set, they ever made I got (84) and to the best that I know of They never made any more. They Used to make them for UPS And a cording to Cloyes the reason they stopped Because UPS started having problems with cam Brakeage instead of the gears over time.
So, I got the last set he said they had, and They sent them to me as an experimental Use ONLY..