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  1. M

    1981 C30 cluster issue

    Wouldn't a short keep the guages off all of the time? Could it be a ground issue. My 60's and early 70's vehicles were real twitchy about grounding.
  2. M

    Weird Electrical Problem

    I had the same problem in my 79 c-10 about 25 years ago. Ran till it got hot and then would quit. Let it sit for 20 to 30 minutes and it would start right up and run again till it got hot but not always quitting right away. Sometimes just quit, sometimes drive 20 to 30 minutes and then quit and...
  3. M

    Spark plug gap closed fresh rebuild

    It may not affect the plug issue but if the cam jumped time it would definitely make it run poorly. I agree that a compression check on all cylinders is a good idea. I still think there is a possibility the piston may have hit a valve and pushed it into the plug. For this to happen would mean...
  4. M

    Spark plug gap closed fresh rebuild

    Some thing to consider: The plugs screw into the head at an angle to piston top travel. If the insulator on the plug is actually bent and the gap is closed, it is likely that the piston top has hit the plug. In a stock application with stock timing, the plug shouldn't come in contact with the...
  5. M

    Where do I find a full set of door cards/panels?

    Try here. https://www.lmctruck.com/door-parts
  6. M

    Hello

    Hi all. The square body has always been my favorite truck and I just bought my fourth one as a semi-project that I intend to be my daily driver until they throw dirt on my face. After looking for about 10 months, I found one pretty much rust free in Tennessee. I went out there to look and liked...

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