pearson 30 flax size for packing

[pearsonpvg]

I am trying to figure out what size flax i need to repack my box this year before launch.I do not have a gauge(as of yet)to measure the shaft size.Is their a standard flax size i need? She is a '78 pearson 30 with the atomic four engine,,thanks you in advance for any advice!!!

 

[Stu Jackson]

If you have 1" shaft, you could either measure it first, or just buy both 3/16" and 1/4" flax and see what fits and return the unused flax.