Honestly not sure. They came on a sc puley bridge for my swap and I ended up upgrading to the Billitflows.
I can try to search my messages to see if that was even montioned as I was always going to go with BF pulleys in redfire to match my build so I dont think I asked.
PM sent with info. Not sure if you will get the message as I think you need 10 posts first. Just make a bunch of replies in this thread to make 10 lol.