[lincpimp]

Did some research, apparently hpi sold a 4x50mm shaft set that secures with e clips on each end. Not available anymore. This is what others have used with the atomic hubs. I could add a screw to the arm to capture the flanged end of the stock hpi pin. And then cut the end off that extends out. I will see if the arms have an area to add a screw.

Looks like the integy parts i got have the pins so i will give them a try with the atomic carriers.