pic: 1675 Teaser #3

[Kevin Kolodziej]

[cdm-description=photo]20166[/cdm-description]

[TriggsJr]

Is it a shaft your trying to spline with a bridge port?

Real splining is done with a hob or a shaper.
This shaft is to long for a shaper.

[TLonghorns0593]

My guess is that those slots are to keep your arm from rotating.