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    High Flow cats on a Blueprint 383

    I have a Blueprint 383 in my 73 K10. I have a dual exhaust on it with no cats. It likes to run rich at idle, about 12.5 to 1 and about 14 to 1 cruising. The fumes when idling are pretty bad. I am wondering if a pair of cats would help any with fumes and would they cause any problems?
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    Need to fix noisy ring and pinion.

    Last summer I paid a shop to rebuild the 12 bolt in my truck. It lasted about 30 miles and the pinoin was floping around like a fish out of water. I took it back to them to do it right. It seems all they did was retighten the pinion nut and call it good. It had gear noise. They pretty much told...
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    Gear pattern and noise questions

    I have finished my Dana 44 in the front and it works very well. It now has a 4.11 gear to match the rear along with a Powertrax worm gear limited slip. I did the same with the rear 12 bolt axle back in July. It has a slight whine on deceleration at anything more than 20 MPH. I am thinking about...
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    Comments on gear pattern?

    I am setting up a new ring and pinion in my '73 K10. This is the Dana 44 in the front. The original gears were 3.08, the new gears are 4.11. I think the pattern looks OK but I could use some comments from people with more experience. The backlash is at 0.010". I still need to set the pinion...
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    How many gallons can you put in your gas tank?

    My 73 K10 has dual 20 gallon tanks. I believe the truck originally has a single tank as there is not a factory mounted tank selector switch on the dash. It has a DPDT switch in a drilled hole. He switch did not work when I bought the truck but I rewired it. Now it switches properly and the gauge...
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    NP 205 rear output change from 1310 to 1350

    My ‘73 K10 NP 205 has a 1310 yoke on the output and I want to change it to a 1350 yoke for a new driveshaft. Can I change the output yoke buy just removing the nut from the output shaft and swap the yokes then replace the nut and torque to 150 ft lbs? Or do I need to remove the tail housing to...
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    Wiper switch connector wire colors and functions

    The wiper motor in my '73 no longer works and I can't find one so i bought a motor for a '82. I then discovered the switch in. the '73 doesn't work with the '82 motor. I have ordered a switch for a '82 but I can't find a connector/pigtail for it. I have also not been able to find a picture or...
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    Delete: Wiper switch connector wire colors and functions

    Sorry, posted in the wrong section, I posted it in the right place.
  9. D

    What seat do I have?

    I need to get new foam and cover for my seat but I am not sure which seat I have. The truck is a 73 K10 regular cab Custom Deluxe. The seat has the adjuster knob on the side. It does not have have the holes for the seatbelts to come through, they go between the bottom and back. It is not a...
    • Don-T
    • Thread
    • Replies: 3
    • Forum: Seats
  10. D

    Is this correct for a stock steering arm?

    I recently bought a '73 K10 that needs a lot of work. The truck came with a 6" lift on it. I have removed the lift and replaced it with springs that are closer to stock. I am now trying to get the steering sorted out. I have removed the steering arm for the lift and bought a stock steering arm...

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