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  1. hatzie

    Start digging around or buy a complete harness???

    He's about the only plug in solution. Mike echoes my experience with AAW and Painless. The "universal" harenesses are anything but painless. If you don't have significant experience don't expect to put one of these in and have it any better than the original no matter how chopped up the...
  2. hatzie

    Start digging around or buy a complete harness???

    The bulkhead plug is Packard 56 & Packard 59 terminals. If one of them or even several are giving you fits extract and replace them. There's some kind of cosmoline or other gooey protectant in that plug that you want to make sure you keep in place.
  3. hatzie

    Start digging around or buy a complete harness???

    If you do any automotive or motorsports electrical work you do not have to buy the expensive crimp tools that crimp the pins for one connector family only in one operation. That type of tool is real nice but it's usually super expensive and not very versatile. Delphi made two exceedingly...
  4. hatzie

    Start digging around or buy a complete harness???

    Wiring is oogie boogie spaghetti OOOH Scary til you think about it in a calm rational manner... It's not spaghetti and it's not scary. Hopefully this will begin to demystify this. The first rule of repairing wiring is to break it up into bite size chunks and fix what's broken. GM made these...
  5. hatzie

    Are the cabs, fenders swappable between a 1975 and 1980?

    There were some gotchas between 73 & 80. 73, & IIRC 74, used a smaller bulkhead electrical plug. 78-80 used a different wiper switch and wiper motor than the earlier rigs.
  6. hatzie

    Eliminating one fuel tank... looking fir a how too.

    Unplug the switch and cap the LH fuel lines. You can reverse it if you or the next owner wants it back.
  7. hatzie

    Dash controls for delay wipers?

    You can probably wire the 78-83 switch to mate with the later delay module but I don't know what kind of response it'll give you. The 84-91 switch has two wires creating a loop from the controller through the delay stepped resistance circuit then wires for ground, hi, lo, and off. The 78-83...
  8. hatzie

    Dash controls for delay wipers?

    You need that switch and a delay module.
  9. hatzie

    Cargo Light Bolts

    Shoulder bolts... or in this case shoulder machine screws. Those have that odd dull gray look like stainless with a shoulder machined slightly proud of the threads. You could check McMaster Carr for odd fasteners. They carry all kinds of special bolts like the Serrated Flange Head nuts and...
  10. hatzie

    K20/K30 frame

    What is your translation of CSFJ?
  11. hatzie

    Whatizit-wiring edition

    If that's the ESC power wire it'll route through a firewall grommet to the ESC controller along with the Knock sensor wire and the wires from the Weatherpak ESC connector from the distributor. There are a couple other wires as well. If you buzz it out it'll be a pink wire in Terminal F on the...
  12. hatzie

    1984 Suburban 6.2L diesel surging

    The Stanadyne 80 box filter is on the firewall. You can use the round cartridge GM 10226035 Stanadyne Fuel Manager that sits in the rear intake valley on the 1992 & later 6.5L on the earlier 6.2L diesels. The only gotcha is finding or fabbing a mounting bracket. It's heated and has the same...
  13. hatzie

    Extra Bulkhead ?

    That's something a previous owner installed... They did a nice job. Usually people aren't as diligent about removing things inside the cab. Where are the wires on the interior side of that bulkhead plug routed? NL2 dual tanks would be a round rubber overmolded four position connector/grommet...
  14. hatzie

    Sears Lathe

    Scott Logan is still selling parts for these machines. Look him up on the Practical Machinist boards. He was at the last NAMES exposition I went to in SouthGate Michigan several years ago.
  15. hatzie

    K10 1976 catalytic converter?

    The 1/2 ton probably had a cat.
  16. hatzie

    HELP! 76 GMC c25 frame needs cab swap

    USBody sells fiberglass noses, cabs, and beds Kinda like buying a kit car.
  17. hatzie

    Three on tree and steering refurbish

    Any particular reason you're looking for the three speed Muncie and not the Cast Iron three speed Saginaw these trucks came with? They aren't difficult to rebuild if it needs that kind of attention. The Saginaw boxes only had two rows of needles on the countershaft so the four speeds...
  18. hatzie

    1987 wipers only work on hi

    Do they park or just stop when you switch them off?
  19. hatzie

    ISO: This piece

    I'd be tempted to put your New Old Stock... NOS... round thermal controllers up on Evilbay and wire up a 1985-2002 one-piece contactor/controller unit in place of the separate contactor and thermal controller.
  20. hatzie

    87 Oil pressure guage issues

    The 80PSI sender is 14040816... Standard produces an aftermarket version. The F-bodies and probably the Vettes used an 80PSI gauge. The 80PSI truck gauge is in the C40, C50, & C60 clusters. There are a couple repop outfits that sell the 80PSI gauge. IIRC the senders are both 0Ω-90Ω so using...
  21. hatzie

    Offroad Marketing Part Time Kit?

    IIRC it had limited slip but it's also 35 years since I laid eyes on it. That's one of Four vehicles I actually miss. My 1978 Thunderbird, My AMC Eagle AWD Wagon, and The Beast, the first car that I owned with no other names on the title, a pea Green & Woodgrain 1973 Bonneville station wagon.
  22. hatzie

    Offroad Marketing Part Time Kit?

    There was something not right about that truck... My 78 W200 Power Wagon was a mule. Damn close to impossible to get her stuck.
  23. hatzie

    Offroad Marketing Part Time Kit?

    I had a Power Wagon years ago with the NP203 AWD. It's a different driving experience. My understanding at the time was... The 203 has an open differential that can be locked for true 4wd so it doesn't bind in AWD HI or LO like say a 208 or 205 or a 241 or 261 driven in 4H or 4L. It will...
  24. hatzie

    SM465 4 speed vs other options

    The SM465 with a Gear Vendors Overdrive has the same gear ratios as an NV4500 with a lot less headache. You can split gears and tow in Overdrive too.
  25. hatzie

    Help identify this diesel engine

    More head bolts would've been better and internal engineering memos that escaped destruction said as much. However. The main problem is the Torque To Yield head bolts they used for machine assembly that continued to stretch when the 500PSI chamber pressures inside a Diesel engine were...

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