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  1. iflyfisher

    73 K20 Driver Side Fuel Tank Sending Unit - 1 Port or 2 Ports?

    What a total airhead! Sorry Rick. I had completely spaced on the second half of the earlier post where you mentioned the tee. Something must have distracted me, and I never fully read it. My bad. Todd, the fuel pump on this old truck does look like it was replaced at some point not too many...
  2. iflyfisher

    79 Fuel Filler

    Thanks Andy. You have been a huge help!
  3. iflyfisher

    79 Fuel Filler

    You gents are awesome! Thanks Eric and Andy for taking the time to post some pix! Huge help. After looking at the pix, I do think the bed I have is an 84+ as Andy earlier suggested. Given that, is there a fuel hose that will connect the shorter 84+ style filler pipe to my 73 tank? I have been...
  4. iflyfisher

    79 Fuel Filler

    Thanks Mason. I thought I had read somewhere that the tank openings were a different size from 84 onward, but I really don't know. Wayne, my 73 K20 has the stock dual tanks. The donor bed, still not sure of the year, has dual doors. I go back and forth about replacing the tanks. LMC shows...
  5. iflyfisher

    79 Fuel Filler

    Hey Mason, would you mind posting a picture of what lies behind the door of your 79? Does yours also have the shield on the inside panel below the door? I looked up the housing for an 84-87 on LMC's site. It does show three mounting holes, likely matching the three holes in the side panel...
  6. iflyfisher

    79 Fuel Filler

    Thanks Andy. The guy I got the bed from said it was from a 79. It has the fuel shield from what appears to be an 81-83 I believe (see image below). The tailgate is also late 70's style. The only reason I care is so I can get the correct fill pipe, hose, and housing. I'm not familiar with the...
  7. iflyfisher

    73 K20 Driver Side Fuel Tank Sending Unit - 1 Port or 2 Ports?

    Thanks Rick. I think I get that. What I am unclear on is how to do it given my fuel pump has no return line. Not sure I am ready to abandon the mechanical fuel pump, and if I did, how the change in pressure might impact the carburetor. I haven't researched this, so I am largely in the dark. I...
  8. iflyfisher

    79 Fuel Filler

    I have a donor bed from a 79 that will be going on my 73 K20. The bed didn't come with filler pipes or hoses. I was on LMC this morning, and I believe a filler pipe from a 79-83 with a filler hose from a 79-81 is the right combination. Based on the drawing on LMC's website, the filler pipe...
  9. iflyfisher

    73 K20 Driver Side Fuel Tank Sending Unit - 1 Port or 2 Ports?

    Thanks Todd. As my mechanical fuel pump doesn't have a return line and I am running the stock Rochester carb, I don't understand, "put a return line setup on now". Where am I returning fuel from? Another question. I don't see a vent line between the tanks, so I presume each is vented separately?
  10. iflyfisher

    73 K20 Driver Side Fuel Tank Sending Unit - 1 Port or 2 Ports?

    Thanks Todd, Spencer, Bruce, and Rick. I have poured over the 1973 service manual, and it notes vehicles designated as 'passenger carrying vehicles' would have had the EVAP canister. But in certain drawings, only the C models are shown with the canister. There is no canister under the hood, and...
  11. iflyfisher

    73 K20 Driver Side Fuel Tank Sending Unit - 1 Port or 2 Ports?

    Hi Folks, I will be removing the old bed here soon and want to replace the fuel tank sending units on both tanks while the bed is off. This truck has single port sending units on both fuel tanks. Based upon what I have read, the truck may have originally come with a two-port unit on the...
  12. iflyfisher

    Door Hinge Shims

    Correct. But the original door had washer spacers and huge gaps. My dad had even added a bunch of washer beneath the striker due to the wide gap at the B pillar. Pix are with the donor door on but fit with original door was about the same. @TotalyHucked, Gotcha. Thanks for the pic. I don’t...
  13. iflyfisher

    Door Hinge Shims

    Thanks @legopnuematic and @bucket. I don’t need a final fix now. I am trying to get the door height close as I am replacing rockers. I can definitely open the holes in the bottom hinge body mount side to allow the hinge to slide back further. As you can see in the image, the outer hole is very...
  14. iflyfisher

    Door Hinge Shims

    Thanks Zach for the feedback. Something must have impacted the cab in the past, though I really haven't found any damage. I have the lower hinge on the body side as far towards the rear of the truck as I can get it. The top hinge cannot be shifted forward or backward as there is a single bolt...
  15. iflyfisher

    Door Hinge Shims

    Thanks for the replies Gents. Attached are some pix for reference. You can’t see the gap at the bottom due to the camera angle, and I have a replacement rocker clamped in. The top door side has single washer shims. The bottom door side has two washer shims. The truck side of the bottom hinge is...
  16. iflyfisher

    Door Hinge Shims

    I picked up some donor doors for my 73 K20. I noticed in taking off the driver door the upper hinges had a single washer shim while the bottom hinge had two washers under each bolt. I put on the donor door and the vertical gap along the B pillar was still a bit wide. I moved the hinge mounted to...
  17. iflyfisher

    83 resurrection

    Sweet. You have some fun hours ahead if you! Welcome aboard!
  18. iflyfisher

    Forward Cab Spacers

    Thanks @CalSgt, I jumped on Summit to check. The spacers I found came with rubber bushings. I already have poly bushings, and I hate to drop $50 a pop just for the spacer. Might have to make my own.
  19. iflyfisher

    Forward Cab Spacers

    Need a good set of forward cab spacers for my 73 K20. Thought I would lob a query out here prior to making my own.
  20. iflyfisher

    Forward Cab Mount Spacer Length

    Thanks for the input @Grit dog. I already dropped $100 on the poly bushings, so I am going to run with them. Hopefully, they are not real squeakers.
  21. iflyfisher

    Forward Cab Mount Spacer Length

    I am replacing the cab mount bushings on my 73 K20. The forward spacers were pretty rusted, and I hoped they would hold up to torquing down on the new poly bushings, but they did not. I am going to make some new ones, but I am wondering what the proper length should be. Both my front ones are...
  22. iflyfisher

    1973 Rear Cab Mount Removal

    Removed the lower bushing last night. The metal tube on the spacer was compressed. I thought that might be the issue as rust had consumed most of the metal. Spacers for back of cab were solid, but these front ones not so much.
  23. iflyfisher

    1973 Rear Cab Mount Removal

    I got all the mounts for the cab in. The documentation for the Energy Suspension noted to torque to 85 pounds. The four bolts didn't tighten consistently. For the two rear mounts and one front mount, the polyurethane cone bushing that sits below the frame didn't compress too much by the time I...
  24. iflyfisher

    1973 Rear Cab Mount Removal

    Thanks @PrairieDrifter for responding. What you wrote makes sense. I’ll loosen the front bolts as well as the other rear cab bolt and lift the cab side to side rather than back to front to get those rear sleeves out. As I still have the front clip and bed on, I can realign to those before...
  25. iflyfisher

    1973 Rear Cab Mount Removal

    I'm replacing the cab mounts on my 1973 K20 and have finished up the front cab mounts. I pulled the bolt on one of the rear mounts and saw that I will need to lift the corner by about 3" to remove the metal sleeve. I had read to replace only one corner at a time to not shift the alignment. But...

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