Allison billet shafts - manufacturers & stock

roycerichards

New member
I am looking to have an Allison built and will be going all billet for my specific needs.
My question- 300M vs 9310 Vacumelt
From taking with a couple different machinists who happen to also be engineers they both recommended 300M over 9310 vacu.
I see that sun coast only advertises the Allison billet input shaft in 9310 vacu not 300M.
I do know that 300M is more expensive than 9310.

Is 300M a stronger choice over 9310 for the input shaft?
Who makes a known 300M input shaft proven to be of high quality.

Thank You
 
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