F100 Wiring Harness

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jgf100
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F100 Wiring Harness

Post by jgf100 »

Hi,
I am replacing the wiring harness on my '70 F100 with a new harness from PainlessPerformance. There are two originally wired parts that have no connection in the new harness or are even mentioned in the manual. The first is under that dash and it looks like a fuse box but has vacuum lines attached to it. The second looks to be connected to the transmission speedometer cable wire in the engine bay. Can anyone help me identify what they are and how I could wire them in to the new Harness.
20171115_131216.jpg
20171115_131308.jpg
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'70 F100, 302 C4
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sargentrs
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Re: F100 Wiring Harness

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The bottom pic is a distributor modulator http://www.fordification.com/forum/view ... hp?t=13334 and http://www.fordification.com/tech/image ... ator02.jpg Not sure what it's purpose is other than some kind of emissions control function.
Randy
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
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sargentrs
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Re: F100 Wiring Harness

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The 1st photo appears to be some kind of cruise control option! Couldn't find anything for a bump but found this related to Mustangs. https://www.google.com/search?q=1970+f1 ... KiAluGlG1M:
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Randy
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
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jgf100
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Re: F100 Wiring Harness

Post by jgf100 »

sargentrs wrote:The 1st photo appears to be some kind of cruise control option! Couldn't find anything for a bump but found this related to Mustangs. https://www.google.com/search?q=1970+f1 ... KiAluGlG1M:
Thanks for the info. It does look like a cruise control option I also found on an earlier model Bronco! At any rate, I'll finish installing the new harness and see what issues if any come up.
'70 F100, 302 C4
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