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  1. Chris64

    Do I restore my AC or?

    I thought I typed up this question before but I couldn't find it, so I probably never clicked "Post thread." Anyway, I have the OG AC from 1974. The compressor label says it takes R12 (which seems to be available online still - Amazon). The line from the condenser to the evaporator appears to...
  2. Chris64

    Instrument panel light question

    I've rebuilt the instrument panel with a new housing and new speedometer. This whole project started with almost no dash lights working. I replaced all the bulbs and the only one I couldn't get resolved was the right blinker in the dash (the outside lights are blinking). 100% the cluster is...
  3. Chris64

    Instrument Panel housing

    My dash cluster is finally looking pretty good, but the white plastic housing is insanely brittle. The left mount tab was already broken and, while putting it back together, one of the top tabs that holds the dash bezel in place just snapped off. I think I can repair it but it's all still super...
  4. Chris64

    Speedo working but Odometer not working

    So now that I polished my gauges and connected my speedo I can actually see how fast I'm driving. Today it occurred to me while taking my truck for a little drive that the odometer isn't moving. I guess I'll be pulling the whole cluster out after all. I'm just curious about two things: 1)...
  5. Chris64

    Debugging my AC problems

    I haven't found any other threads with this specific problem. 1974 K-20 Cheyenne - factory air The problems so far: * Fan speed is always on what I think is low. I replaced the fan controller and it behaves the same. Changing the speed does nothing. I think I need to replace the resistor, but...
  6. Chris64

    Polishing up the gauge lens

    So as usual, I started a task - get my AC working - and then I got distracted with other things. * Why aren't my dash lights working? So while I was trying to take out my cluster, I removed the lens and tried out some plastic polish I had laying around with a foam pad in a cordless drill. It...
  7. Chris64

    Removing instrument panel - dealing with the oil pressure line

    This is a strange thing that I haven't found any help on the internet at all. It's a 1974 K-20. I was trying to remove the instrument panel and I'm not sure what to do with the oil pressure line. Everything I see online only talks about the speedo cable and the power harness, which are both...
  8. Chris64

    Wanting 4" suspension suggestions

    My K-20 currently has a 2" lift. It came that way. I assume it's aftermarket leaf's up front and it has 2" blocks in the back (I looks to maybe also an add-a-leaf in the rear). That said, it's a bouncy ride. In summary, my two questions are; I need to lift it a little more for my tires. Is...
  9. Chris64

    LMC AC controller has too many detents

    I ordered the AC/heater controller to replace the one I have (which is missing knobs, scratched and just looks awful). The problem is it has too many detents for the top lever. The label is correct, it has 6 sections, but 7 detents. I'll try to get fancy with fonts to explain - When I slide...
  10. Chris64

    Switching to dumbo mirrors

    I found a couple templates for their location. It seems like in pictures most people line it up in the middle with the wing-window support bar. The factory location is a few inches forward of that. I didn't get the bracket that goes inside the door (yet). If I do get it, I think that will...
  11. Chris64

    Rear Window size question

    I'm looking to replace my rear window for a 1974 K-20. It has a slider. I don't know if it's factory. I wanted to change it to a solid window. Everywhere I look it's called a "large" window. They approx. the glass size to be 16"x64". The problem is that is beyond the size of the outer edge of...
  12. Chris64

    Should the windshield wipers park on a 1974?

    I finally got around to adding wiper blades so I could try out the wipers. They seem to work but the speed didn't really change much from slow to fast. Also when I turn them off they just stop wherever I turned them off. Are they supposed to park? Is there an intermittent? I'm afraid to even...
  13. Chris64

    First real drive! Not tragic but not good. I think I need carb advice.

    So I've been checking off items to make this thing drivable and nothing's been easy. Lights; I had no lights and no single problem. A few cut wires, a few chewed wires, a few bad bulbs and a few bad connectors and even some bad bulb sockets. I know have full lights (outside) blinkers, brakes...
  14. Chris64

    US Mag wheels lug nut suggestions

    So I just got my new wheels which are the US Mag 17x10's lug nut: I did a test fit with just the rim before taking them down to get tires (BFG AT 35x12.5x17) added and they fit very similar to what the truck had (Weld 16.5x9.5) Similar offset. A tiny bit wider (5mm) but they only offer 1 size...
  15. Chris64

    Rebuilding my dash pad.

    OK, A new project that probably won't work, but I'll try. I figure worse case scenario, I just buy a whole new dash. My original plan was to fill in the cracks and to fiberglass it as others have done. It looks good but I wasn't in love with it versus the more natural looking grain as well as...
  16. Chris64

    Glove Box Repair

    So I'm starting to address my interior issues. As seems to be the case, no project happens without creating a secondary project. I learned that the hinge of Square bodies are trash and not meant to last 50 years. Replacing is easy enough but I'm on a budget so let's repair it! Searching around...
  17. Chris64

    Stripping paint off instrument panel

    The dash was filthy and flaking so I washed it with warm soapy water and it flaked way worse. I then went with a scrubber sponge and some Comet to see if that would take it all off. It didn't really change much. If I paint over it, it will just flake off. If I sand/wire-brush it, it I will ruin...
  18. Chris64

    Rear brake bleeding struggles

    74 k20. I'm new to these things aside from dirt bikes and quads. I don't know if the rear brakes were working before but the pedal was mushy. I bled the front brakes fine (ish). When I went to bleed the rear left the vacuum wasn't pulling any fluid at all. The bleeder screw was cleaned out...
  19. Chris64

    Rear body mounts for a 74 k20

    Hello, I'm replacing the stock body mounts. It's been going OK so far. The first bolt has not spun on me. The problem I'm running into is how do I remove the rear bushing on a 74. Most videos suggest doing just one mount at a time but this year has this stupid metal tube/flange that would...
  20. Chris64

    What could this random tube attached to the exhaust be?

    Surely someone can explain this mystery tube to me. It's hose clamped to the exhaust for some reason. It's not drilled out or anything if you look down the tube. It's just clamped to it and barely hanging on. Chesterton's-random-exhaust-tube. It's better to figure out why it's there before...
  21. Chris64

    74 Adjusting tailgate latches

    The tailgate will not close unless I pull the handle while slamming. I went to figure out how to adjust this and I don't see any way to do that. I could add some shims near the rubber grommet possibly. Does anyone know how these are adjusted?
  22. Chris64

    Seat Rebuild - To reuse or not reuse padding. And fixed to folding?

    I just broke down the disgusting seat/mouse house on my 1974 K20. I'm pretty sure this was the original seat/cover. If you leaned on it your hand would go through it. The frame was in spectacular shape so that's great. First question. Is it worth reusing this foam (back only, bottom was...
  23. Chris64

    Surface rust. What are the best practices?

    First post and I know there are many topics on this but the answers for these are always situational so I wanted to share my latest findings taking this rodent house apart. Yell at me if I'm doing it wrong. First, the bed. It doesn't look terrible. I have a portable sand blaster. I was thinking...
  24. Chris64

    I finally got my hands on a squarebody!

    Hello All! I've always loved the Squarebody and on Saturday took delivery of a semi-running k20. It's a 1974 which is perfect for me being in CA (No smog!). Sadly it spent a little time on the beach in Mexico and it has a few rust spots but not terrible. Floors are solid and bed has no holes...

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