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The top of the new shaft has a taper that is simply a press-fit
into the old shaft's holes in the upper seat mount/spring
the lower portion goes down through the 1" ID tapered roller, and the
stepped bottom end gets lateral
(anti-wobble) support from the needle
bearing in the bottom cup.
All text, photos and graphics
Copyright 1998- 2015, Doc's Machine & Airsmith Services. All Rights
Information contained in
these pages is for reference and entertainment
purposes only. Our methods are not always the best,
quickest, safest, or even the correct ones. It's up to you to know how
to use your own machines and tools.
Keep your fingers away from the spinny blades o' death and you should
be all right.