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  1. 85K304SPD

    86 GMC C2500 - Heater blows hot, then cold, then hot, then cold etc.

    Flush and new anti freeze with a new thermostat. Thermostat is probably hanging open.
  2. 85K304SPD

    400 SBC Build - Tight Budget

    450 to 500 streetable horsepower, on pump gas might be a hard thing to accomplish on a SBC, but still better than the LS swap. Do as much as you can yourself, with what you already have.
  3. 85K304SPD

    1986 Rare Build sheet? Tell me what you think!

    Unique. There may be another one somewhere, but, like this one, I'd have to see it to believe it. You better save that one. Very nice looking truck.
  4. 85K304SPD

    VARMITS

    What kind of critter was it? You could cut some light sheet metal or plastic sheet, to fit inside the recessed areas or just a long strip over the whole side and screw it on with little self drilling screws. Something like that.
  5. 85K304SPD

    Factory Recommended Tire Pressure for ‘84 K20 with 235/85/16’s

    I would think that you would go with what the tire says. The "max pressure" would be the highest that you would put, to haul the most weight. For comfort there is no reason to max them out for daily driving. I like to run most LT tires at 50 psi. P tires are usually 35 psi max.
  6. 85K304SPD

    Aftermarket efi 2bbl of 4bbl?

    Edelbrock 600cfm on a dual plane intake.
  7. 85K304SPD

    This is probably a bad idea, but I'm too cheap to pay for a tow.

    How are you going to get it on the tow dolley by yourself? Find somebody with a trailer and offer them a 100 dollar bill. Maybe somebody from the school.
  8. 85K304SPD

    Dual fuel tank filling

    Very clean looking. How do you put the bed on with the pipe on top of the frame? At least you wouldn't have to move the truck around to the other side at the gas station to fill up both tanks. Just use the original pick up tubes/ sending units that feed from the top, if you can get the bed on there.
  9. 85K304SPD

    70s Propane/Turbo conversion?

    I've never seen that combo either. Is that a 6 cylinder of a small block?
  10. 85K304SPD

    Intro to forum and a hub story

    Welcome, fellow NM person. I guess that it "worked", you made it home!! haha. Show us some pics of that beast.
  11. 85K304SPD

    K20 c6p rear axle questions

    GU6 REAR AXLE-3.42 RAT
  12. 85K304SPD

    K20 c6p rear axle questions

    My mind is blown. My K30 has a 14 bolt FF, of course, but so does my '84 GMC K20. Are you all sure that no K20s came with the FF? The option number on the tag for the axle is GU6; REAR AXLE-3042 RAT.
  13. 85K304SPD

    Excited to be here

    No offense, but looks sketchy to me. The whole "can of worms" thing. You are going to spend more trying to make mismatched things work together, than if you had found some wheels that fit the truck. And you would be happier with nice looking, correct fitting wheels. Please, post some pictures...
  14. 85K304SPD

    Excited to be here

    Yes 16.5s are not very common any more. You can put 16s, 17s or 18s. I believe they came stock with 16" wheels. I like to keep them original, so my choice would be 16s. 17s and 18s are probably more common these days. I am not sure what would be the best priced size. I have 3 trucks with the...
  15. 85K304SPD

    Best Door Hinge Lubricant

    Spray can of white lithium grease, liquid wrench brand, I believe.
  16. 85K304SPD

    MACHINING 16.5" DOWN TO 16"?

    I think the OP was trying to save some money by not buying the correct stuff. Even if it could be done, imagine how much a machine shop would charge to do something like that... There ain't no free lunches out there...
  17. 85K304SPD

    MACHINING 16.5" DOWN TO 16"?

    Pictures of what you have? I don't think you can machine a wheel, "down a size".
  18. 85K304SPD

    Can I run 35s on the street with this setup?

    There is going to be some cutting involved. Once you cut it you cant put it back. Stick with what fits. What is your goal with that rig? It looks like it needs alot to make it road worthy. 35s will only compound the problems with that truck.
  19. 85K304SPD

    Howdy from arizona

    Welcome. Show us some pictures of that K10, please.
  20. 85K304SPD

    Oil burnin 5.3

    That top link to the TSB doesn't open without a password.
  21. 85K304SPD

    Oil burnin 5.3

    My 2007 with 180k is an oil burning pig. 1 qt every 1000 miles. I have had it since new, and it has never missed an oil change. It runs great, other than the oil consumption problem. I hope it is as simple as the pcv. I will have to check that out.
  22. 85K304SPD

    I cant get my new engine to run smooth. Seems untunable.

    Worn out throttle shaft bore on the Q jet. Pretty common problem. They suck air around the shaft, and it makes them idle high. PITA to fix, you have to take the shaft out, drill them out and put a new bushing. I've never done one.
  23. 85K304SPD

    Heater Motor?

    We used to call it the summer heater, or something like that, "back in the day". It sucked to be the guy that had to ride in the middle. Oh well, we were Cruisin'. That is all that mattered. I don't think that my '85 does that like the '80 that we were cruisin back then.
  24. 85K304SPD

    Dana 60 hubcaps.

    Throw up some pictures of them, and see what you find out. My K30 has a Dana...Hmmm.
  25. 85K304SPD

    I cant get my new engine to run smooth. Seems untunable.

    Maybe bad gas? I had a square with an L98 (aluminum head version) that I drove daily for several years. It ran great until a buddy started messing with the timing. Make sure the timing is right and the gas is good, because it is a high compression engine. I broke and replaced 1 piston, from...

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