Just an fyi; I had rocker arms unlimited (RAS) bush a set or Isky rockers for me this year and I bought their shafts with banana groves and their hold downs as pictured above in AndyF's picture. Gary mentioned that they've discussed making their own rocker arms again for Mopars. The shafts were the biggest hold up in getting everything back as the business that chromes the shafts for them took awhile; Gary told me that they just don't send enough to the business for a fast turn around. It sounds like they wait until they have a big enough order to do them all at once; I could be wrong though.