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05-03-2015, 06:08 PM
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#1 |
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Senior Member
 
Join Date: May 2007
Location: Doodah Kansas
Posts: 7,774
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OD switch on a 1947 GMC?
bought a not running 47 GMC today, so I cant try the switch out, but it has three positions (all the way in and two clicks out) it looks like this:
 took a bad picture of the trans too. (has a PTO for a hydraulic dump bed cylinder)  what I noticed right away was the universal joint on the trans. its a 3/4 ton truck but my 49 3600 had a torque tube for about 3 ft off the trans before the open driveline. any ideas? its being delivered tomorrow so I can get more pictures.
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the mass of men live lives of quiet desperation if there is a problem, I can have it. new project WAYNE http://67-72chevytrucks.com/vboard/s...d.php?t=844393 |
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05-03-2015, 11:03 PM
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#2 |
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Registered User
Join Date: Sep 2013
Location: Vashon WA
Posts: 969
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Re: OD switch on a 1947 GMC?
PTO
IN is forward gear spinning clockwise (up)? ONE notch out Neutral TWO notch out revers Counterclockwise rotation(down)? Must push in clutch peddle to switch forward/Revers . OR two speed rear end look on the drivers side of the rear end is there a vacuum boster
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My Spelling is Not Incorrect...It's 'Creative' . . 1966 C-20 .....Swap 91 G-30(5.7 FI)/4L80E http://67-72chevytrucks.com/vboard/s...d.php?t=789617 59 Viking Revival .. http://67-72chevytrucks.com/vboard/s...d.php?t=632341 |
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05-03-2015, 11:28 PM
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#3 |
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Registered User
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 15,705
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Re: OD switch on a 1947 GMC?
The knob below the dash and beside the steering column should be the one to work the PTO. I'm not sure what you have going with the switch that is in the normal spot for the headlight switch.
Show us more photos of what ya got there as inquiring minds want to know more about this one.
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Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around. |
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05-04-2015, 01:05 AM
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#4 |
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Senior Member
Join Date: May 2007
Location: Doodah Kansas
Posts: 7,774
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Re: OD switch on a 1947 GMC?
haha good point, its probably just a fancy knob on a headlight switch
__________________
the mass of men live lives of quiet desperation if there is a problem, I can have it. new project WAYNE http://67-72chevytrucks.com/vboard/s...d.php?t=844393 |
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