Sam (Bones) Posted January 28, 2013 Share Posted January 28, 2013 ok you that have '70's with gauges!...do you have two (2) sending units??? one in each head (one for the TSC and one for the gauge) Link to comment Share on other sites More sharing options...
monte70car Posted January 28, 2013 Share Posted January 28, 2013 I had one in the drivers cylinder header. There is one sending until that has two connection on it. Here you go Sam part # GAC-660 from ground up $20 Link to comment Share on other sites More sharing options...
Sam (Bones) Posted January 28, 2013 Author Share Posted January 28, 2013 There is one sending until that has two connection on it. I believe that one is for the TSC and the idiot light looking at my wiring harness, I have one wire on the drivers side, and I have another wire on the other side of my engine, and I have gauges Link to comment Share on other sites More sharing options...
monte70car Posted January 28, 2013 Share Posted January 28, 2013 Sam it doesn't say gauges or not. I do see that sender listed in both the tsc section and in the water temp sender section so I'm not sure. could it be the the other temp lead went in the wrong direction? Link to comment Share on other sites More sharing options...
Sam (Bones) Posted January 28, 2013 Author Share Posted January 28, 2013 it does in the assembly manual Link to comment Share on other sites More sharing options...
LostnFound Posted January 28, 2013 Share Posted January 28, 2013 The one with 2 prongs is for the idiot light cars. The one for the tack/gauge package has one prong but it isn't the same type of prong. I've seen them both on Ebay etc and I have a brand new spare for my idiot light temp. Cheers, Larry Link to comment Share on other sites More sharing options...
Sam (Bones) Posted January 28, 2013 Author Share Posted January 28, 2013 according to a web site that sells wiring harnesses...the two prong goes in the pass head and a threaded one for the gauge goes in the drives side head good news...I found both of my sending units bad news...my harnesses are brittle and if you bend them the wiring insulation breaks Link to comment Share on other sites More sharing options...
Leghome Posted January 28, 2013 Share Posted January 28, 2013 Sam time for a new harness me thinks. Link to comment Share on other sites More sharing options...
stangeba Posted January 28, 2013 Share Posted January 28, 2013 The 71 NO A/C I took all of the gauges and wiring from, also no A/C, had two sending units. The right head unit I never took, just the left. If I remember correctly, the original left sender in my car W/O gauges had two, now only one wire. My TCS is not hooked up but everything else works fine for over 22 years now. Bruce Link to comment Share on other sites More sharing options...
Sam (Bones) Posted January 29, 2013 Author Share Posted January 29, 2013 that's why I'm looking for someone who has gauges no AC and still all stock Link to comment Share on other sites More sharing options...
Dans '70 Z20 Posted March 1, 2013 Share Posted March 1, 2013 I have two sending units in mine. Gauges & A/C Link to comment Share on other sites More sharing options...
gronlit Posted March 4, 2013 Share Posted March 4, 2013 My 70 454 with gauges, no AC has two...one with two prongs, and the otherside has one with a stud and nut You can see them on my cardomain link below, page 6 of 7 Link to comment Share on other sites More sharing options...
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