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01-29-2023, 08:36 AM | #1 |
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Join Date: Nov 2022
Location: Kansas City
Posts: 497
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Please help identify sender connection
Hi all. My chassis is supposedly a 77 or 78. My 4x4 shifter connects to this part under the truck and ther are 2 blade connectors on it. Maybe for a display that indicates if the truck is in 4x4 low, high, or 2wd mode?
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1971 C10 manual cab. 76 4x4 chassis. Cut short frame. Carbureted Blueprint 350, automatic 700r4. ~ James |
01-29-2023, 02:45 PM | #2 |
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Join Date: Aug 2012
Location: Oklahoma City, OK
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Re: Please help identify sender connection
Is there a 4WD light in your instrument cluster? If it doesn't light, the missing connector could be why.
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01-29-2023, 03:34 PM | #3 |
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Re: Please help identify sender connection
That's exactly what it does ---indicates when in 4wd
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01-29-2023, 11:26 PM | #4 |
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Re: Please help identify sender connection
Ok thanks. My cab is a 71. The wiring was half torn apart with lots of missing parts when I bought the truck. I took out 100% of the wiring and am almost done installing the new wiring harness. I don't yet have a dash gauge cluster put in. Where would this light have been in a stock setup? I haven't seen a wire in the new harness for it.
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1971 C10 manual cab. 76 4x4 chassis. Cut short frame. Carbureted Blueprint 350, automatic 700r4. ~ James |
01-30-2023, 12:06 AM | #5 |
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Location: Ottawa, Ontario, Canada
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Re: Please help identify sender connection
Are you using the cluster out of a77- up truck? Because 72-67 do not have that option as far as I know.
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1977 REG cab Long Bed with a 1984 Front Clip, 82 305 .60 over 9.0.1 flat top pistons, 4bbl, TH350, w/84 SS-intake & cam , w/ 1977 big block rad, 1975 gear box, 1984 master w/ metric fittings top & SAE fitting @ portion block, 1975 3.42 gear open diff. Duel 77-87 Factory air cleaner, duel inlet from rad support . Down sized 9' to new 8' Steel flat bed Was a 77 454 w/308 gear. Taken out 550 lbs. up front with motor clip change. |
01-30-2023, 01:13 AM | #6 |
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Location: Oklahoma City, OK
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Re: Please help identify sender connection
The location varies. I have an 84 CUCV (K30) that has the idiot light cluster. The 4WD light is one of the locations were gauges would go for a gauge setup. I have a cluster out of a square suburban that had gauges and the 4WD light was one of the smaller lights at the bottom of the cluster.
If you wind up with a non-4WD cluster, you could just add a light somewhere fed off that sender. IIRC - both of my 4WD lights were a variation on yellow. |
01-30-2023, 01:05 PM | #7 |
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Re: Please help identify sender connection
I think you would need the cluster that came with the truck that originally came with the 203 transfer case. Never seen a switch on a 205 shifter. That is unless there is a knock out in all the printed circuits for this option
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01-30-2023, 04:24 PM | #8 | |
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Re: Please help identify sender connection
Quote:
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'51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com |
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01-31-2023, 12:47 PM | #9 |
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Re: Please help identify sender connection
The 203 transfer case made its debut IN 1973 and was in GM 1/2 and 3/4 tons trucks until 1979. Mostly behind automatics. The majority of the manual transmissions got the 205. But as always there were lots of variations
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01-31-2023, 01:03 PM | #10 |
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Re: Please help identify sender connection
According to the GM vehicle info kits only the NP205 was available in 1973 making 1974 the first year for the NP203.
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'51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com |
01-31-2023, 06:06 PM | #11 | |
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Re: Please help identify sender connection
Quote:
Neither my 73 nor my 80 (350/465/205) had a 4wd indicator light that I remember. Back then people could figure out whether they were in 4wd or not, I guess I bought both of those pickups brand new, which were the only brand new vehicles I have ever owned.
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Current/past Chevy/GMC trucks: 1958 Chevy C-60; 1965 GMC C-50; 1965 Chevy C-10; 1971 Chevy K-10; 1973 Chevy K-20; 1976 GMC C-20; 1977 Chevy C-10 Suburban; 1980 Chevy K-10; 1989 Chevy K1500; 1991 GMC V1500 Suburban; 2016 Chevy K2500 HD Other vehicles: 1988 Jeep XJ; 2011 Toyota 4Runner |
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