It depends on the diameter of the lay-shaft. I got the CRC universal arbor for my Hudy, and it fits perfect.
At worst case, you may need to get a metalworker to make a sleeve to fit over your shaft if it's too small, or drill out the arbor if it's too big.
Agama A8 Evo | GRP .21 | Spektrum | Savox
My car just hit 88mph. I hope it comes back soon....