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    Replacement vacuum control box?

    Hey guys. Does anyone know of anywhere that sells this? I’m trying to figure out why my heater isn’t coming on on my 86 c10 and for some reason mine control box has this style of set up on it instead of the 84-86 version I’m not 100% if that’s the problem or not on why my blower motor isn’t...
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    86 gmc C1500 Blower motor won’t turn on?

    So I’m having an issue with my blower motor, I just bought a new one a few weeks back and it worked for the 1st few days but it suddenly stop powering on, so I decided to do some digging and if I hook a wire straight up to power it comes on but if I use the fan controls inside the cab, nothing...
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    Spark plugs keep fouling and Missing under a load?

    They normally are worse than this I cleaned the plugs up earlier but this is about 7 minutes of run time on them, it idles fine but then you give it throttle and it starts to miss real hard
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    Spark plugs keep fouling and Missing under a load?

    Hey guys So I’m having a problem with my 85 C10. I got a crate 350 from auto zone and I’ve only driven it a handful of times and I keep running into this problem that when I give it throttle it has a miss and when I drive and punch it hard, it misses pretty bad and I can’t figure what the...
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    Gauge fuse keeps blowing

    Hey guys I’ve been recently working on my 86 gmc 1500 and I just got done installing a temp sensor into the truck and I go in to turn the key and the gauge fuse pops. So I thought maybe i hooked the wrong wire up and sure enough it still blows without it being plugged, I did a test on the 2...
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    Th350c lock up wiring

    Hey guys I recently bought a th350c for my 86 sqaurebody and my truck never originally came with the th350c and once I got the tranny home it came with this connector for what I assume is the lock up, its a 3 pin connector if anyone could tell me how to wire this up I would appreciate it I’ll...
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    86 c10 Driveline is too short

    I would say your correct. I never really measured the original but I knew the tail shaft looks identical to the one down below, I think the 700r4 I had was a 6 inch tail too but it was a tight fit to mate the driveline to the rearend. This Th350c is the old ball because is just barely off from...
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    86 c10 Driveline is too short

    I’ve thought about having one made but I haven’t got a quote on one, I thought since it had a th350 originally that the drive shaft should go in without a problem or is there a difference in length between th350 and the th350c driveline?
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    86 c10 Driveline is too short

    Hey guys I recently bought a th350 from oreillys for it to turn out to be Th350c transmission. My Square originally had a regular th350 short tail in it then it was swapped a few years back to a used 700r4 and last year the 700r4 lost 3-4 so I went ahead and bought a brand new trans to put a...
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    No power to the gauge cluster? 86 c-10

    Hey guys, I just recently installed my Circuit board on my gauge cluster and I’ve been trying to sort out the wiring mess from the aftermarket gauges and convert them back to factory. when i plugged my cluster up earlier I had zero gauges at all no volts,fuel,oil nothing but I did have the...
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    Fuel gauge wiring help?

    Hey guys, I been working on the wiring on my 86 c10 over the weekend and I been trying to hook all the wiring back into the original harness and I came across the fuel gauge wires and I noticed there a wire ran from pin 7 to 18 and I don’t think that’s right but I wanted to be sure what wire...

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