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Old 04-12-2013, 11:53 AM   #1
Metalaroundstone
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What should cover these wires?

Is there a cover missing from the inside firewall for the stop and tail light wires? Is seems odd that these wires are just exposed near the accelerator pedal. There is a nut an bolt there. What are they for?
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Old 04-12-2013, 01:55 PM   #2
1963c-10
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Re: What should cover these wires?

taillights/reverse light. No cover. The plug goes through the firewall and connects to the intermediate bed harness.
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1963 Short bed step side SBW 427 big block and borg warner T-16 HD 3 speed manual
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1963 Short bed fleetside BBW 348 1st gen big block w/Powerglide
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1964 Short bed trailer
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Old 04-12-2013, 01:58 PM   #3
Metalaroundstone
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Re: What should cover these wires?

Do you know what the nut and bolt are for?
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Old 04-12-2013, 02:02 PM   #4
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Re: What should cover these wires?

What year truck? I have a 61 & 63....neither have that nut. Whats on the other side of the firewall that it's connected to?
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1963 Short bed step side SBW 427 big block and borg warner T-16 HD 3 speed manual
http://67-72chevytrucks.com/vboard/s...d.php?t=519869
1963 Short bed fleetside BBW 348 1st gen big block w/Powerglide
http://67-72chevytrucks.com/vboard/s...d.php?t=619024
1964 Short bed trailer
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Old 04-12-2013, 02:17 PM   #5
Metalaroundstone
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Re: What should cover these wires?

It is a 66. There is just a bolt sticking through from the engine compartment with the nut on it as shown in the picture.
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Old 04-12-2013, 02:27 PM   #6
1963c-10
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Re: What should cover these wires?

There were some differences in the 60-62 & 63, and the 64-66 cabs. Maybe someone with a 64-66 can help some. Ive never seen this bolt in any 60-63 chevy truck. If it doesn't do anything, Id take it out and fill the hole.
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1963 Short bed step side SBW 427 big block and borg warner T-16 HD 3 speed manual
http://67-72chevytrucks.com/vboard/s...d.php?t=519869
1963 Short bed fleetside BBW 348 1st gen big block w/Powerglide
http://67-72chevytrucks.com/vboard/s...d.php?t=619024
1964 Short bed trailer
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Old 04-12-2013, 02:52 PM   #7
Metalaroundstone
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Re: What should cover these wires?

Should the wires go underneath the inside firewall cardboard insulation? Or are they just supposed to be sticking out like they are now?
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Old 04-12-2013, 03:21 PM   #8
1963c-10
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Re: What should cover these wires?

They are correct as is.
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1963 Short bed step side SBW 427 big block and borg warner T-16 HD 3 speed manual
http://67-72chevytrucks.com/vboard/s...d.php?t=519869
1963 Short bed fleetside BBW 348 1st gen big block w/Powerglide
http://67-72chevytrucks.com/vboard/s...d.php?t=619024
1964 Short bed trailer
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Old 04-12-2013, 03:33 PM   #9
Metalaroundstone
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Re: What should cover these wires?

Thanks for your help 1963c10. Much appreciated! My under-dash wiring has been such a quagmire that I don't trust anything about it. Forturnately, after untangling it, I was able to get everything to work. Although my heater blower only works on low and high speeds, but that probably means I need a new heater resister.
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Old 04-12-2013, 04:05 PM   #10
1963c-10
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Re: What should cover these wires?

Probably the heater switch itself. If its getting hot on low & high, the resistor is working. Replace the dash switch 1st. Obviously the blower motor is working, so that the only thing I'd replace.
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1963 Short bed step side SBW 427 big block and borg warner T-16 HD 3 speed manual
http://67-72chevytrucks.com/vboard/s...d.php?t=519869
1963 Short bed fleetside BBW 348 1st gen big block w/Powerglide
http://67-72chevytrucks.com/vboard/s...d.php?t=619024
1964 Short bed trailer
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Old 04-12-2013, 04:38 PM   #11
ChuckW
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Re: What should cover these wires?

I just looked at my 66. The wires are exactly as your's are.. The bolt thing is not a bolt on mine. It's a plastic (OEM) fastner to hold the cardboard insulation in. If that helps.
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Old 04-12-2013, 04:53 PM   #12
1963c-10
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Re: What should cover these wires?

There is a firewall plug just under it. Kinda an odd place to put a bolt.
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1963 Short bed step side SBW 427 big block and borg warner T-16 HD 3 speed manual
http://67-72chevytrucks.com/vboard/s...d.php?t=519869
1963 Short bed fleetside BBW 348 1st gen big block w/Powerglide
http://67-72chevytrucks.com/vboard/s...d.php?t=619024
1964 Short bed trailer
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