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For the rear - any of the ZC pulleys from 870c to the works cars as it uses the older outdrives.

For the front - YZ-10 pulley as the diff outdrives will be different, I think that MX/MR 4 pulleys will work.

Hey number 7 unfortunately Dan passed away a couple of years ago. There are some pretty knowledgeable yokomo guys on here so I’m sure someone will be able to help you out