75gmck25's latest activity
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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... -
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...
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75gmck25 replied to the thread LED conversion.I’ve seen other cars where the markers alternate like the squares, so there may be a bulb design that works. However, if the old style...
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75gmck25 replied to the thread Do I even need a gas tank vent tube?.Blazer and Suburban tanks will fit if you have no spare tire. Not sure the big 40 gallon Suburban tank will work, but smaller tanks...
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75gmck25 replied to the thread Instrument cluster questions on new build.Oil pressure sensor should be the same for all the engines. Pressure is pressure. Temp sensor might be different, but I think they are...
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75gmck25 replied to the thread Weird solenoid looking thing.Some vapor canisters are much simpler than the one in the picture. My ‘75 has one hose to the gas tank vent and one hose that used to go...
