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  1. BJedi76

    700r4 lock-up

    Yes, i need the 4pin vacuum switch wire. none of the local auto parts stores can find it. What is its technical name or some kind of reference number? I also feel like I should replace the brake switch, Or at least have a spare on hand.
  2. BJedi76

    Looking for a steering column

    We don’t have any local wrecking yards There were only a couple & they have gone out of business, or going, so no inventory left. closest salvage yard is 150 miles away and they say that don’t have one.
  3. BJedi76

    700r4 lock-up

    I am assuming there is only one or the other, not both. How do I verify which one I have? I thought I had an ECS. Can it be told by the wire colors or do I have to look at the device itself behind the glove box?
  4. BJedi76

    700r4 lock-up

    “Factory computer”..? I thought I just had an ECS, but after looking up years of usage, I might have an ECM. is this two different pieces of equipment at the same time or does the ECM replace the ECS? And where would I find the ECS/ECM? there’s a box up under my glove box, but I thought that...
  5. BJedi76

    700r4 lock-up

    I fully read through all the links and everybody’s directions and suggestions. And I have, what I think might be viewed as, a fairly stupid question, but how is any of this simpler than using the 4pin patch cord to the vacuum switch? i’m sure I’ve missed the point somewhere. I don’t tow...
  6. BJedi76

    700r4 lock-up

    So with the check-ball, it shifts from; 1st to 2nd to 3rd & then straight to 4th lock up? (Which I call 4th 1/2) I want all 4 & 1/2 gears. if this is true, I would rather have the patch cord.
  7. BJedi76

    Looking for a steering column

    ‘86 GMC 4x4 Sierra Classic 1500 SWB w/305” on a 700r4 in Alaska I’m looking for a complete tilt steering column. LMC quit selling my particular steering column. And even when they did it was $1100..! All I’ve been able to find, on my own, is a place on the East Coast (4000mi away) that...
  8. BJedi76

    700r4 lock-up

    ‘86 GMC 4x4 Sierra Classic 1500 SWB w/305 on a 700r4 I have been looking for the patch cord between the transmission lock up four pin connector & the vacuum actuator switch on the firewall. I asked a local transmission shop mechanic if he could acquire one. He told me that simply...
  9. BJedi76

    Ignition switch Identification

    If one was to bypass the ignition switch and use a single dash switch and a push button, would the brown wire become obsolete, Because the orange wire would be connected to the same switch?
  10. BJedi76

    Key Powered Pink wire with black stripe?

    Is it useless now? should I remove it? I was really hoping that would solve my electric choke not opening when the engine is warm, problem. it’s a project. Lol...
  11. BJedi76

    86 GMC w/non electronic carb

    I have an older thermostatic carburetor (converted to electric choke) on my 86 GMC 1500. I am curious as to what wires Are no longer needed from the firewall plug. Are there wires that I have to bypass or Eliminate? and is that box that is screwed up under the dashboard behind the glove box...
  12. BJedi76

    Key Powered Pink wire with black stripe?

    What is this wire? It is key on, powered it comes from the firewall block and it is pink with a black stripe. 1986 GMC 1500
  13. BJedi76

    Starter wiring options

    I guess you just add fusible links powering the alternator & ignition switch. has anyone had any experience with both of these types of wiring & understand why it was changed. Or when? Was it simply an attempt to get the power wire more insulated from the exhaust manifold? manuals are...
  14. BJedi76

    Starter wiring options

    And on the second system, why is the battery power wire, black?
  15. BJedi76

    Starter wiring options

    1986 GMC Sierra Classic 1500 SWB 4x4 There seems to be two distinct methods for starter wiring. I cannot find anything to tell me why there is a difference. Whether it was a year thing or model are they just changed methods at a certain point. One involves the red 4g power wire from the...
  16. BJedi76

    Starter Wiring Heat Shield - Where does it go?

    I got some spark plug wire heat shield sleeve material.
  17. BJedi76

    Starter Wiring Heat Shield - Where does it go?

    My truck does not have this starter wire heat protection tube. does anyone know where I can get one?
  18. BJedi76

    About differentials

    I have a 1986 GMC 4x4 Sierra classic 1500 SWB. I live in Alaska so, half of the year I’m driving on ice and the other half I am driving on pavement and earth. I don’t haul things or tow things. my question is; What is the highest ratio rear end for highway mileage that I can get with...
  19. BJedi76

    86’ K15 starter wiring

    So I should put a fusible link from my starter “Batt” bolt to the little junction box thingy on the firewall? ...then power everything else from that box? ...& the purple wire from the small solenoid bolt to the ignition switch?
  20. BJedi76

    86’ K15 starter wiring

    Every old GM v8 starter I have ever replaced had these 3 wires connected to the starter. The really old ones had four wires on the starter.
  21. BJedi76

    86’ K15 starter wiring

    There are three wires attached to my starter. 2 to the large bolt & one to the small bolt. 1) main battery red wire to large bolt 2) smaller red wire (I assume to the ignition switch 3) on the small solenoid bolt (I assume close is the circuit with the ignition switch.) my question is... is...
  22. BJedi76

    1986 K1500 Fuel system

    FYI...305” engine w/700r4 trans. I have used several sources for parts: AutoZone, O’Reillys, LMC, Carquest, & Napa. everybody seems to have a little different stuff and I was wondering if anybody could tell me alternate resources for quality parts, or whether that’s it. LMC can get...
  23. BJedi76

    1986 K1500 Fuel system

    1986 GMC 4X4 sierra classic 1500 To make a long story short, I ended up with a Frankenstein w/mismatched parts from all sorts of squarebodies. I am trying to rebuild it, but I I am having trouble deciphering what actual parts I am supposed to be acquiring. for example; I am currently...
  24. BJedi76

    Mechanical fuel pump

    Now it won’t run at all unless I pour gas down the carburetor. I took off the fuel line at the carburetor, and almost no fuel came out. i’ve taken many fuel lines off of many carburetors and whenever I did, tons of fuel poured out. Always needed a rag under it to catch it. This time just a...
  25. BJedi76

    Mechanical fuel pump

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