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Old 09-25-2013, 08:50 PM
JayBrown JayBrown is offline
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Join Date: Jul 2013
Boat: 1976 master craft stars and stripes
Location: canada
Posts: 349
throttle shaft size

So I'm about to buy a shifter knob for my 76 s&s but don't know the size of the throttle shaft as my is all put away and up north and not sure if it is 1/4" or 3/8"? And is it coruse of finr thread?

Last edited by JayBrown; 09-25-2013 at 09:08 PM.
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Old 09-25-2013, 11:18 PM
MikeyOrange88 MikeyOrange88 is offline
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Join Date: Jul 2012
Boat: 1988 Tristar 190 Sport (Closed Bow), 351W w/ GT-40's
Location: Southeast
Posts: 303
I actually made my own shifter knob from a ten-ball some years ago to replace the little black ball.
I happened to already have a tap that was 3/8x24 (fine thread) and it matched the throttle stem, so I went and bought a single ball. Typical throttle that is on my '88 Tristar. Drilled shallow hole on a drill press and ran the tap in. If you have to buy the tap, probably cheaper to buy from the online site though. Only picture I could find that shows the throttle and ball. It has really yellowed in the ten years it has been on there.
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1988 Tristar 190 Sport, 351W w/GT-40's, 1:1 Velvetdrive
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