75gmck25's latest activity
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75gmck25 replied to the thread Fuel line question.SAE J30R7 (used for TBI or carb pump pressure) and SAE J30R9 (used for EFI high pressure) are the newer specification hoses that will... -
75gmck25 replied to the thread Gas tank replacement, 16 gallon.The point is, who needs to have gas tanks in a matching color? They are tucked under the bed, and the bottom covered by a black shield.
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75gmck25 replied to the thread Fleetside bed sides different?.Mine had a dealer-added tank on the drivers side. It was fabricated out of steel plate, and had a drain fitting on the bottom. Filler...
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75gmck25 replied to the thread Tank selector.The old single wire valves move/default to the main tank if they lose power, so it’s always good to keep it at least 1/2 tank in the...
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75gmck25 replied to the thread NP203 question.These trucks always sucked for gas mileage, and folks tried all sorts of fixes to make it better. I’d have to think a little more...
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75gmck25 replied to the thread Tank selector.The OP has a ‘77, which probably has the old 6 port solenoid with a single power terminal. These are no longer available. I have been...
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75gmck25 replied to the thread NP203 question.Locked hubs should not be an issue for the NP203. If you leave the hubs locked tfor quite a while it might be a PIA or unlock them if...
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75gmck25 replied to the thread New or junkyard?.The design of the front fenders traps water and various junk (leaves, dirt, etc.) in the bottom, so original fenders usually have...
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75gmck25 replied to the thread Does anyone see a fusible in this pic?.Since my ‘75 K25 probably matches your ‘75 K20, I think I can help. - the clear fuse holder on the left is the fuse (25 amp?) for the...
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75gmck25 replied to the thread Edelbrock build.Stock 1406 usually has quite lean jets and rods. You might have to get a Edelbrock tuning kit and richen it up for a 460. Also try...
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75gmck25 replied to the thread 1979 454 C10, Factory Air.I have always used a factory-style accumulator (or filter/drier) in the stock location, but I assume the VA part does the same job...
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75gmck25 replied to the thread The new 14 bff full rehab questions and conversation thread.I don’t even know enough to be dangerous, but I thought that for many GM axles there are two different carriers, based on the ratio...
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75gmck25 replied to the thread Chevy 14 bolt - gov bomb locker???.It is called the gov bomb because the locking function uses an internal mechanical design that engages and locks as the axle rpm goes...
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75gmck25 replied to the thread Dash pictures of ‘77 K5 Blazet w/tach.That is great to see there is a replacement board for the original truck tachs! I read the old articles about how make your own...
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75gmck25 replied to the thread Dash pictures of ‘77 K5 Blazet w/tach.GM also had issues with the electric board on the back of their tachs in the 70’s. There are multiple sites with a replacement board...
