75gmck25's latest activity
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75gmck25 replied to the thread Valve cover bolts won't stay snug..Stamped steel covers should have small steel load spreaders, which are also usually arched a little to create a spring effect as you... -
75gmck25 replied to the thread Charcoal canister delete?.My ‘75 truck originally had a dedicated purge line port on the Quadrajet, and I assume it worked. However, I now have a Quadrajet on...
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75gmck25 replied to the thread Gauge cluster.The clusters changed slightly over the years, so you need to know the year of the replacement cluster to get a good idea of whether it...
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75gmck25 replied to the thread Stock radio mounting.The two shafts are mounted into the metal dash. There is also a factory rear metal support/strap that extends down to the bottom of the...
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75gmck25 replied to the thread ‘83 K5/ SBC 350 Swap/ new/old oil sending unit differences/dash gauge/Autometer gauge?.If you look on eBay you will see many choices, mostly marketed for the oil line on a Turbo. Just make sure it has the right threads...
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75gmck25 replied to the thread ‘83 K5/ SBC 350 Swap/ new/old oil sending unit differences/dash gauge/Autometer gauge?.You can put a T in the port/line where it connects near the distributor, but now you have multiple connections that can leak. I would...
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75gmck25 replied to the thread Speedometer refuses to work. Any help is appreciated.You should be able use a drill to spin the transmission end, and it will make the speedometer read. If that works, then it’s the...
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75gmck25 replied to the thread Stuck O2 Sensor.Start out with PB blaster or penetrating oil. Did you buy an O2 sensor wrench? They are designed to fit over the sensor and give you...
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75gmck25 replied to the thread Squarebody chassis swap build help: Were there any exterior differences between 81-87, 2wd/4wd and weight classes (c10, k30, etc).I have read in other posts that there are frame differences in the one ton trucks. I know the rear shock mounts are definitely...
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75gmck25 replied to the thread Definitive interchangeable parts thread 73-87(91) (non-drivetrain).The logo on the early tailgates was centered, so the GMC embossed on my ‘75 is in the center of the sheetmetal. Later on they switched...
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75gmck25 replied to the thread Rim compatibility.If you just need a spare, and don’t plan to use it in a tire rotation, you can also use a 16” wheel and tire. 16” 8 lug rims are...
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75gmck25 replied to the thread Transmission cooler ideas.Long Mfg. Low Pressure Drop (LPD) coolers are stacked plate coolers (same design as B&M) and them come in many sizes. Most have a low...
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75gmck25 replied to the thread Crate SBC 350 installation plan.My old SBC had the factory lifting eyes already on it, so I used them in combination with a balancer bar. I took the distributor and...
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75gmck25 replied to the thread Power steering gear box.I think the boxes cross between 1/2, 3/4 and 1 ton without any issue if it's the same year group (IIRC, 73-78 shaft ends are different...
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75gmck25 replied to the thread Did the NP203 change internally between 1974 and 1977?.In the past they used to sell an NP203 chainsaver kit, but I haven't seen one advertised in a long time. I assume it just helped take...
