75gmck25's latest activity
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75gmck25 replied to the thread Instrument panel light question.It is almost certain to be a ground issue. When a ground is bad, devices “find” other paths to ground, and lights go on and off. Did... -
75gmck25 replied to the thread Fuse panel.It was probably wired differently on a the '89, but my '75 Camper Special has the factory 2nd battery option and it uses a relay mounted...
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75gmck25 replied to the thread Can anyone tell me what this is??.I installed a couple aftermarket cruise controls, and they both had two magnets you epoxied to the driveshaft. Then you mounted a sensor...
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75gmck25 replied to the thread Headers and O2 sensor.If you have a heated sensor it can be farther down the pipe, away from the exhaust manifold, since it does not rely on engine heat to...
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75gmck25 replied to the thread Fuel leak?.A couple of years ago I had a fuel pump that was shooting a small squirt of fuel out the side/top through a crack. It was going right...
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75gmck25 replied to the thread Skool me on timing w/o timing tab.SBC timing tabs may be at the 2 o’clock position, or 12 o’clock (the ones I have seen look more like a vertical tube than a tab), and...
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75gmck25 replied to the thread Trailer wiring on a 77 K5? How do I do that?.This diagram shows the difference between the wiring standards. So you need to know what the trailer has. No wonder things get wired...
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75gmck25 replied to the thread Trailer wiring on a 77 K5? How do I do that?.https://www.etrailer.com/Trailer-Wiring/CURT/C57672.html?feed=npn You need to use the Curt adapter in post #4 above to connect the...
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75gmck25 replied to the thread 3 minute battery life…?.Considering the symptoms, it might be a short to ground. Are you sure you have the polarity right on the battery cables?
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75gmck25 replied to the thread Can this be removed?.A factory stock air cleaner has a place on the snout to connect that tube, and the connection has a vacuum and thermal controlled...
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75gmck25 replied to the thread 73-74 grille on a '77.It should only require the grill supports from the older truck, although I’m not sure how it changes if you have an inside hood release...
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75gmck25 replied to the thread Good rear gears.Stock tires on a C2500 are probably about 30-31” (245/75R16?), and you don’t have overdrive. Figure out your current rear end ratio and...
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75gmck25 replied to the thread Hello, my name is Derek, and I have Just joined this page, trying to find some good information on working on my new 1978 k30.Most of these use a windshield antenna. There is a snap/button connector on the lower windshield just behind the radio speaker. That...
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75gmck25 replied to the thread Instrument cluster questions on new build.Right, the oil pressure gauge reading is also based on sender resistance. However, I've never seen anyone who struggled to match the...
