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  1. wingman50

    how fast is your power window?

    Installed this harness on my ‘81. Maybe not as fast as a new truck but very close. LMC Truck. This kit hooks to the battery. The windows in are trucks are powered from the switch. Heavy-Duty Power Window Harness Ch
  2. wingman50

    Help with malfunctioning cluster.

    I had a similar problem with dash lights in my cluster. The bulbs kept falling out. My solution was to put in aftermarket gauges fro Nu Vintage USA. That was in 2018. They are still working great.
  3. wingman50

    Looks like I have to rebuild or replace my 350 in Houston area

    Bought a long block 350 from Mabbco Motors in 2020. Had it shipped to my mechanic who put it in for me. Was able to due everything for around $3000 including a new alternator power steering pump, water pump and new oil pan. Still running great. Believe Mabbco Motors is close to Houston. My...
  4. wingman50

    I guess I give up on the windows

    Installed this harness on my ‘81. Maybe not as fast as a new truck but very close. LMC Truck Heavy-Duty Power Window Harness
  5. wingman50

    AC troubleshooting

    I tried for 2 years to get my ’81 Factory AC to work. The thing that finally worked for me was changing the evaporator as well as the accumulator. When I got the evaporator out it was so full of leavers and dirt that the fan could not blow through it. I replaced the compressor, orifice tube...
  6. wingman50

    Evaporator Box

    Does anyone know where to find an AC evaporator box/cover for a 1981 C10. Looking for the side next to the engine. Thanks
  7. wingman50

    long block 350, looking for suppliers

    Mabbco Motors. I bought a 350 Long Block from them in 2020. It’s been great. They will build any thing you want as far as upgrades. Mine is mostly stock with ARP Main Bolts, High Volume Oil Pump, Molly Rings and a couple miscellaneous upgrades. They are great to work with and you don’t need to...
  8. wingman50

    81 C10 pulling right

    Also had the same pull to the right on my ‘81. Replace calipers, disc’s and brake hoses which solved the braking issues.
  9. wingman50

    Cam Break In - Tips for Avoiding Wiped Lobes?

    A Zinc Oil Additive is important for a fit tappet lifter engine. They modern oils don’t have zinc because of catalytic converters. There is some debate on the necessity of Zinc only for break-in of if it should be uses on every oil change.
  10. wingman50

    Terrible Gas Mileage

    1981 C10, 700R4. Not sure of the rear axle ratio however was a diesel. Now have a remanufactured 350 from Mabbco Motors. Quadrajet 4bbl, turning 2K rpm at 73 mph. Maybe getting 10 mpg. Replaced a 350 burning a quart of oil every 200 miles, that was getting 8 - 9 mpg. Mileage doesn’t change...
  11. wingman50

    Break in procedure

    Use a Zinc additive in your oil. Especially important for the flat tappet cam. The oil we have today does not have zinc.
  12. wingman50

    engine oil

    Using Amazon Basic 5W30 conventional oil and Rislone ZDDP Zinc additive.
  13. wingman50

    Brothers cup holder/arm rest

    3 years old and still great. Would recommend the console from Brothers.
  14. wingman50

    LMC should be proud

    Sorry to hear that you had a bad experience with LMC. Have purchased many parts from LMC which have been excellent. Most of my purchases have been interior parts. They have all work out, fitting properly and looking great.
  15. wingman50

    sloppy steering.

    Had a similar issue with my steering. Went to replace the steering gear and discovered it had pulled away from the frame. Had to weld about a 1 inch piece onto the frame to be able to replace the steering gear.
  16. wingman50

    Let's see your GM squarebody stickers!

  17. wingman50

    Header Paint?

    Spray mine with Graphite. Low cost, easy to apply. The Graphite will wear off however lasts quite a while. Additional applications increase the durability. The color is carbon black.
  18. wingman50

    Wanders All Over the Road

    Agree with Snoots. Check the frame where the steering box bolts to the frame. My steering box pulled away from the frame and left a 3” hole that I had to weld up and redrill mounting holes. My truck is from CA and is not rusty. From reading posts in this forum it is common for the box to pull...
  19. wingman50

    Ground Issues

    Tried to start my truck a while back and nothing. Turned out to be a bad ground. As I was trouble shooting the no start issue found the ground from the passenger side head to the cap dangling. Looked like the previous owner did not secure it to the head. Purchased several ground straps and have...
  20. wingman50

    No turn signals with running lights or headlights on

    I’m struggling with a similar issue attempting to convert tail lights and front parking/turn signals to LED’s. Don’t have a definitive answer however Reasearch I’ve done may help you. Changed the 552 flasher to a polarity independent solid state flasher with a chassis ground and got the tail...
  21. wingman50

    Instrument cluster problem

    The grounds are a good place to start. Also check the harness connection on the back of your gauges. You may be able to reach up under the dash to locate harness. Wiggle it to see if has come loose.
  22. wingman50

    Building Gauge Cluster

    Thanks, they all work.
  23. wingman50

    Building Gauge Cluster

    I have replaced my gauges with New Vinage Guages that come in a kit. They are available from LMC Truck. You can break down the installation into 4 basic connections 1. Ground 2. Power 3. Lights 4. Signal You need a wiring diagram for your trucks year. The factory harness is color coded for all...
  24. wingman50

    Dome Light and Courtesy light HELP NEEDED

    I had the same problem. Put in a new in the dome light socket which blew the fuse. It took a long time to figure it out that it was the bulb. I was putting a single contact bulb in the dome light socket that has a DOUBLE Contact. The single contact bulb will short the fuse. Try the double...
  25. wingman50

    Hi from Bs. As. - Argentina

    Welcome Franco. Very nice C10

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