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  1. Dmack

    Paint help

    May have been oil contamination in the color step.
  2. Dmack

    Break booster vacuum to front of intake??? Will it work?

    Could be wrong, but the booster should be fine as long as the vacuum port use large enough. The only possible issue I can think of is leaning out the cylinder that the front port is in, assuming you are saying it is in a runner and not right at the base of the carb in front.
  3. Dmack

    Front and rear diff/transfer drain and fill

    Here is an axle reference. Front is probably a Dana 44, and rear corporate 14 bolt. I believe Dana asked will usually have the model embossed on the center carrier section webbing (44,60,70). https://ck5.com/forums/resources/axle-identification-chart.10/ Transfer case, find one that looks...
  4. Dmack

    What would cause the gas gauge to peg past full?

    If you already hooked up the new sending unit ground wire, try a jumper wire from the tank\sending unit to a good clean ground. I have a 20 foot wire with alligator clips on it so that I can reach from the negative battery post to anywhere on my truck. That way I know for sure that I have a...
  5. Dmack

    What would cause the gas gauge to peg past full?

    It usually means you have an open circuit. Could be a bad ground, broken wire, bad sender (I had a new one for my old 68 that was bad from the factory)...
  6. Dmack

    Fuel gauge and valve questions

    thanks for the help. I'm not hooked up to the gauge yet as I'm working my way forward from the switch to the valve and then the gauge. The switch is working, but I can get the sender ohm reading through the valve. Normally I would conclude a bad valve, but since I'm having the same problem...
  7. Dmack

    Fuel gauge and valve questions

    Thanks for the suggestions. I have continuity from the weather pack to the firewall through the gauge wire. I'm not sure if I will accomplish anything jumping a or C to the B terminal. It should be switched inside the valve, at least my understanding is that when it switches tanks, it will...
  8. Dmack

    Cab Steps

    Carr brand it appears.
  9. Dmack

    Fuel gauge and valve questions

    Hello all, I have been trying to troubleshoot my system to get my gauge to work. I have an 83 K20 with dual tanks. I have sender readings at both the A and C connections on the weather pack connector. When I plug it into the pollack valve, I don't have a reading at the B wire to the gauge. I...
  10. Dmack

    Heater Control Cables

    Here is a pic of the block off plate for the ac holes. The blue square is approximately where you would cut the air supply hole in the firewall. The pink is where the factory wiring harness comes through. Get the entire harness from the switch to the fan motor. The green is a bastard of a...
  11. Dmack

    Cab Steps

    Pulled.these off of a parts fruck. Seem to work fine.
  12. Dmack

    Heater Control Cables

    It is a simple swap. Just get the entire heat only system and it just bolts in. When I got mine, I left the heater controls attached to the inside heater box. No losing parts. Then just pull the fan box from the engine compartment with the wiring and you are golden. A couple of suggestions...
  13. Dmack

    Heater Control Cables

    https://www.gmsquarebody.com/threads/heater-box.27123/#post-517332
  14. Dmack

    Heater Control Cables

    Here is the non ac setup I have. If you are going to use the a.c. panel and inside box, you're will be significantly different. I believe they are controlled by vacuum lines. There were a couple of recent threads on them I will try to find and post a link. The top control cable controls the...
  15. Dmack

    How much weight will a 1/2 ton really handle?

    While many of us have done it, this is one of those "just because you can doesn't mean you should" things. Liability wise, huge amounts of bad juju possible.
  16. Dmack

    Heater Control Cables

    I can post some tomorrow if no one does before then. My 83 was originally ac, but it was gutted. I just got a complete assembly from a 73 (control panel, cables, inside airbox assembly all connected, and the fan and metal housing from the engine compartment) and it bolted in easily.
  17. Dmack

    Fuel leak

    Just a guess, but that is generally where an electric choke would be on a carb. So the wire could have been from a prior carb with an electric choke. On the leak, hard to tell, but makes sense and a fuel line is easy to replace. May want to look for a steel replacement for peace of mind .
  18. Dmack

    Won’t start

    Maybe pull the plug and make sure no water entered the engine. Not sure how high it got...
  19. Dmack

    Rebuild an engine in the truck

    the John Deere guys trick for freeing up a seized engine is to adapt a spark plug to take a grease zerk fitting, thread it into one of the cylinders with all the others removed. Hook up a grease gun and let hydraulics do the work.
  20. Dmack

    What have you done to your square lately??

    Purists won't like it, but my factory gauges were either unreliable or didn't work at all. Replaced them with mechanical oil and water gauges, voltmeter, and tach. Also replaced the Speedo cable that lasted two days after getting the truck on the road. My fault, melted against the exhaust...
  21. Dmack

    Fuel Gauge

    If it rests last full, at 3 o'clock, it usually means you have an open circuit. Generally a broken or disconnected wire, or broken sending unit connection, as some mentioned before.
  22. Dmack

    Ignition issue, no spark

    I lost my hei coil last month. Worked fine , then ten minutes later, nothing. Put on a spare cap and fired right up. If you don't already have one, I would pick up an in-line spark tester. Easy way to confirm spark.
  23. Dmack

    Seat Swap

    I'm sure someone more knowledgeable will chime in, but I know you have to remember that the square has a raised section under the seat. So look at the overall height of the seat cushion of the seats you are looking at.
  24. Dmack

    How does the oil gauge function? Mine is pegged to the right

    There is an electrical sending unit below the distributor. Make sure the wire is plugged in.
  25. Dmack

    Electric issues

    Are you just seeing the flux at idle? If so,not uncommon as the regulator doesn't always let the alternator kick in until a bit above idle.

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