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  1. William Keiter

    1990 K3500 brake controller and plug wiring setup

    Looking under the hydroboost for the wiring it appears I have six wires going to the rear, can’t see if I have an orange or blue and will have to clean them off a bit and trace them back. If I recall the brake and turn signals take about 4 wires.
  2. William Keiter

    1990 K3500 brake controller and plug wiring setup

    Can anyone tell me a good trailer wiring set-up from adding a 7-way plug and wiring all the way to adding a brake controller. I have a 1990 3500 with a receiver and no wiring whatsoever. Guessing previous owner removed. Have been trying to research a good set up but figured I best ask for...
  3. William Keiter

    1990 K3500 Rear brake shoes done

    Replaced my rear drum brake shoes on dually K3500, now believe if I can do that job in my driveway I can accomplish anything. Very difficult removing the drums. Driver’s side I had to sneak in the inspection window and loosen the tensioner. Overall brakes feel great but could be bleed again...
  4. William Keiter

    Dorman hinge pins are garbage.

    Any tips or tricks to replacing the bushings on your own. I have a small door holder I bought from a guy that you can put on a jack...don't know about doing them without someone holding the door.
  5. William Keiter

    Oil Pan gasket 1990 K3500 7.4L

    I have been looking at oil leaking for awhile, anyone have the steps it takes to replace an oil pan gasket on a 1990 K3500 7.4 engine?
  6. William Keiter

    Proportional Brake Controller

    What’s the plug and play like or a lot of wiring? Put a Tekonsha on my 03 Suburban and recall it being pretty easy to just yep into a factory plug location
  7. William Keiter

    1990 K3500 Dually Front Rotor/brakes replacement questions

    So thankful for all the info! I just finished rear shocks last weekend. Last minute trip for work next week to Vegas then hope to get started when I return. Haven’t yet bought hubs but sounds like it would be better to replace while at it $$
  8. William Keiter

    1990 K3500 Dually Front Rotor/brakes replacement questions

    Afternoon, I recently ordered front brake pads and rotors from NAPA. Realized after purchase it appears I have to separate the from hub bearing to replace the rotors. Do I need to go ahead and do the hub bearing assy while I am in there? If so what do I need to look out for and ensure I am...
  9. William Keiter

    Maxing out payload with Slide in Camper?

    It was my understanding the 4600 is for stock height and 5100 are a little longer to allow for the longer travel of the lift?
  10. William Keiter

    Maxing out payload with Slide in Camper?

    Looking to upgrade shocks and brakes first, where did you find HD shocks? I was looking at bilstien 5100 but have a 2" lift and need to be sure they are the correct length.
  11. William Keiter

    Maxing out payload with Slide in Camper?

    I have a 1990 K3500 Dually 7.4L 4:10 ext cab and am looking at my father-in-laws 1998 Alpenlite Laredo 10 Slide-in Camper. Checked the weight last weekend and its 3,200 lbs. Didn't think it would be a problem being a dually but it appears the payload cargo weight rating is 3,000 lbs. Anyone...
  12. William Keiter

    Shock length with 2.5 inch lift?

    Purchased K3500 with a 2.5 inch block is the rear. When buying new shocks how do I select the appropriate length or part number. Probably looking at Bilstiens or Fox shocks
  13. William Keiter

    Serpentine belt problem

    I recently replaced my Serpentine belt and from all research I could find I had the wrong idler pulley installed. I noticed the new belt seemed too short and began researching images and manuals. There seems to be a lot of with to without AC configs. I bought a new gates idler pulley that runs...
  14. William Keiter

    Transmission fluid leaks

    Took Shroud top off, cleaned out the entire area and tightened cooler lines. Seems like after backing out a bit and re-torquing it wasn't much but I'll leave the skid plate off and see if leak goes away.
  15. William Keiter

    Transmission fluid leaks

    Anyone dealt with transmission fluid that appears to be leaking from the center of the radiator area into the shroud and down along the front clip? History, recently purchased 1990 K3500 7.4L in Jan '21 Previous owner stated and had receipts for replacing the radiator and hoses. I haven't...
  16. William Keiter

    New 91 Chevy owner!

    Nice project truck. Remember to check the simple stuff first as you never know who had their hands in there. I have found quite a bit of loose clamps, plugs, act on my recent purchase 1990 K3500. Tail light gremlin was a simple connector under the dash that was halfway installed. Good luck
  17. William Keiter

    1990 Stereo buttons not working

    Thanks will look for DeOxit. Before I got the balance and Fade stuck due to button function the speakers were all working front and back. The cassette unit I have not tried but have a tape coming in. The EQ LCD has only lit up on longer drives a couple of times.
  18. William Keiter

    1990 Stereo buttons not working

    Is there any fix to the stereo buttons? My 1990 stereo head unit had some buttons that work, theres that don't and some that decide to work randomly. I tried spraying with electrical cleaner when not powered a few times with no real noticeable improvement. About to take it out and try removing...
  19. William Keiter

    Blue LEDs in a 94 Stereo

    Amazing work! Glad I found this post, I just got a 1990 that has a head unit with buttons that sometimes work and tape deck that appears dead 99% of the time. Might start rebuilding them soon. Do you have a parts list for your rebuild?
  20. William Keiter

    This is what 6 years of neglect look like.

    If nobody has grabbed up the cluster I just bought a 1990 with temp and odometer/trip not working.
  21. William Keiter

    1990 GMC Wiper Motor

    Great to know, I just bought a 90 K3500 and previous owner said he had to hit the motor with a hammer sometimes to get it to turn off
  22. William Keiter

    Found short in harness under dash

    Looks like after troubleshooting a no right rear brake light/flasher for a week I may be on to something. All the wiring/grounds in rear shot good. Moved up to interior where I found what appears to be a broken wire under the dash inside the harness just above the pedals. See video, you can...
  23. William Keiter

    1990 K3500 Passenger Brake/Turn light issues

    Replaced brake switch and same problem existing, massaged wiring until I found area in main harness bundle just above OBD and Hood release that when pushed up on would change turn signal from rapid flash to normal. Anyone experienced this ??
  24. William Keiter

    1990 K3500 Passenger Brake/Turn light issues

    They are not on all the time now. Two modes, either drivers side only works or after playing with the pedal/switch both sides work until the passenger side goes back to malfunctioning. Hoping AC Delco replacement arrives today
  25. William Keiter

    1990 K3500 Passenger Brake/Turn light issues

    I have been working to troubleshoot a rapid flash/no brake light problem on the right/passenger rear light since recently buying my truck. Checked and changed all fuses, no sign of anything. The previous owner mentioned he thought it was wiring and I could see a relay hanging from under the...

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