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  1. carpart67

    86 High Sierra - Spindle Studs

    I'm starting to replace the front left ball joints on my 1986 High Sierra. Truck is half ton 4wd. Just wondering if anyone could tell me if the studs that hold the spindle on are threaded or pressed in. I've got the rotor/hub removed and the nuts/studs behind it that hold the spindle on are...
  2. carpart67

    Module on valve cover? (1986 GMC 350)

    I plan on swapping the valve covers on my 1986 High Sierra. The engine is the original 350. The drivers side valve cover has some sort of relay or module clipped to it with wires running to it. Just wondering if anyone could tell me what it is? I'd like to get some info so I can figure out...
  3. carpart67

    Selector valve removal

    I plan on switching my truck to single tank. Conveniently enough my selector valve just went on the fritz. The return line has been feeding into the opposite tank than the fuel pump is pulling from. Couldn't understand where all my fuel went. Just wondering how the fuel lines connect to...
  4. carpart67

    Side tank removal

    Fuel tank brackets and removal Excuse my stupidity but I'm fairly new to these trucks. I have an 86 High Sierra with dual tanks. It looks to me like they are held in with large "C" shaped brackets that wrap around the bottom of the tank. One of the tank brackets on my truck has rotted. Also...
  5. carpart67

    5w40 in 350?

    Looking for some opinions on oil grade. I've picked up a 1986 K1500 with a 350CID engine. The owner before me used Mobil1 10w30 in the truck. I'd like to stick with the Mobil1 oils. Here's my issue, I'm concerned about the levels of zink and phosphorus. I've been reading the newer GF-5...
  6. carpart67

    Largest tires on stock suspension

    I've picked up a 1986 k1500 High Seirra and it's in pretty close to original shape. That's rare for my area so I'm not sure if I want to lift it of leave it unaltered and put as big a tire as possible under it. I know 31s will fit no problem, but not sure after that. Wondering if people...
  7. carpart67

    Detent cable question

    I've got a 1986 GMC 1500 4x4. Its got a turbo 350 auto trans. According to the VIN it was originally a 4bbl 305. The engine is now a 350 with 2 bbl carb. I want to replace the detent cable for the trans as mine is broken. I ordered a cable from GM but it's not like the one on the truck now...
  8. carpart67

    Wiper Problems.

    I’ve got a Canadian built 1986 GMC, 1500 4x4. It’s anyone’s guess as to what parts are original lol. I am having some problems with my wipers. I’ve only got one speed, and they are not automatically returning to the bottom of the window. The markings on the wiper switch have worn off but...

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