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Old 02-21-2011, 04:17 PM   #1
jbgroby
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Vent cable length?

I'm ready to install the new vent cables that operate the plentum doors, but to me it seems like the new cable are WAY longer then needed. Does anyone know what the correct length would be. I looked in the factory shop manual no luck and the assem. manual also does not give a length.

At some ooint under teh dash I know I have to fasen a hold down just to help stablize the cable, but the new one came with about 4 feet of cable and sleeving.

I can rough guess but I hate to do that.
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Old 02-21-2011, 05:07 PM   #2
markeb01
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Re: Vent cable length?

My original 1960 GMC vents are no longer in the truck, but remain complete with the original cables attached. Stretching them out as best I can, both appear to be about 27.5 - 28" in length from the end of the loop where it attaches to the door flapper, to the bezel where the knob bumps into it. If needed I can take photos.
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Old 02-21-2011, 06:21 PM   #3
jbgroby
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Re: Vent cable length?

Thanks Mark,

I'll cut them to your length, I know I have to cut the sleeve shorter than the messenger cable by (I figure 1-2").

Last edited by jbgroby; 02-21-2011 at 06:22 PM.
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Old 02-21-2011, 06:45 PM   #4
jbgroby
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Re: Vent cable length?

Mark Can you send a pic, the ones I've got have a longish collar b ut the knob and I want to make sure I'm cutting it correctly.

Last edited by jbgroby; 02-21-2011 at 06:45 PM.
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Old 02-21-2011, 07:04 PM   #5
markeb01
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Re: Vent cable length?

Just got home, I'll post pics shortly.
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Old 02-21-2011, 08:56 PM   #6
markeb01
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Re: Vent cable length?

Here you go. I took pictures of the front and back of one vent. I then pulled the cable and stretched it out flat as best I can on a measuring stick. The overall dimension appears to be 28 - 5/16” from tip of hoop to the face of the bezel where the knob bumps into it. It appears a tad longer in the photo because of the angle of the bracket. I left the pictures large so you could see the details. On my cables, the knobs turn for alignment in case that matters. Any questions let me know:











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Old 02-21-2011, 09:54 PM   #7
jbgroby
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Re: Vent cable length?

Thansk Mark, On anther issue with the vents Its been so long since I took her down, I can't seem to line up which holes the knob bracket mounts to. I'll try to post a pic tonight or tomm, Damn I spent 2 hours on the vents just getting them ready.
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