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  1. Matt69olds

    I’m buying a lottery ticket!!

    Over the winter, my son and I have been fixing/updating some severely neglected things on his 92 Yukon. Things like replacing the crumbling dash, the falling headliner, rebuilding the suspension, installing a lift kit, installing heated back glass/mirrors, power seat, etc. One of the big items...
  2. Matt69olds

    Rally wheel colors?

    Decisions Decisions! I’m trying to decide what color to paint the rally wheels on my 81 GMC. I had originally planned to just go back with the factory Argent silver, but my son suggested black. I immediately dismissed his thoughts as foolish and juvenile, but now I’m reconsidering. I’d hate to...
  3. Matt69olds

    Speedo with trip odometer?

    I don’t normally drive my truck in the winter, but I needed to today. While the engine started instantly in the 8 degree weather, the rest of the truck wasn’t happy! Problem #1: the blower motor screams when it’s cold. Fortunately, that didn’t last long. Problem number 2: the speedometer...
  4. Matt69olds

    Delco 2700 ETR Cassette player.

    I finally got the plugs needed to test this radio. I removed it from my 81 GMC probably 25 years ago, as I suspected the cassette deck needs work. The radio plays, but the display and the sound comes and goes. I suspect it has more than a few bad solder joints. The tape deck will load, but not...
  5. Matt69olds

    Old school garage door opener remote

    Anybody in readerland have a junk old school large single button style garage door opener remote? I’m looking for one to install in my son’s 92 Yukon overhead console. My plan is to gut the remote with the exception of the activation switch, and extend wires from the switch to a remote to the...
  6. Matt69olds

    Radio plugs

    Anyone in readerland have an extra set of the factory Delco radio plugs? I have radio Id like to test before posting for sale. I believe there is a white, blue, and black plug.
  7. Matt69olds

    Factory AM/FM cassette radio

    Dad found this radio in the shed. I took it out of our 81 GMC probably 30 years ago. I recall the radio worked, since I put a pioneer cassette deck in after removing this I doubt the deck works. Assuming I have the plugs, I plan to test it. Assuming it works, what’s it worth? Assuming it at...
  8. Matt69olds

    Transmission cooler ideas

    One step forward, 2 steps back. Combine with the “Might as Well”, means my transmission swap is taking much longer than anticipated. I have had this transmission sitting on a shelf for years, I thought I had gathered all the parts and little things I’d need. HA! Got my TV cable brackets sorted...
  9. Matt69olds

    Wrong tv cable???

    Greetings. I finally had a reason to swap the 700 into my 455 olds powered 81 GMC. I built the 350c not long after I did the 455 swap, I finally killed it. I built the 700 a few years ago in anticipation of this day. The trans supposedly came from a 91 caprice 9C1 cop car. It definitely is a...
  10. Matt69olds

    Fuel guage bounces?

    I seem to recall reading about a fix for this. My wife drove the square for the first time yesterday. After getting out she asked what the deal was with the fuel gauge? It does bounce, a lot! It’s been like that for as long as I can remember. It’s not unusual for it to bounce from 1/4 to...
  11. Matt69olds

    Jack ideas?

    Ever have one of those days where you just want to crawl back into bed and hope tomorrow is better? Long story, hopefully you find it amusing. Had to drive the square to work last Wednesday. I’m not sure if I ran over something or if the tire just failed, but it went flat immediately. Lucky...
  12. Matt69olds

    What to keep? Sbc questions

    Number one son bought a 94 blazer for cheap. It’s been seriously abused and beat, but has some neat parts/options that will eventually find its way onto his Yukon. I’m not very fluent in sbc stuff. Are any of the later model pass side dipstick blocks desirable? Are any 4 bolt mains? If I...
  13. Matt69olds

    Interior parts 92 Yukon

    Good Lord, the late 80s/ early 90s were definitely the dark years of GM interiors!!! Everything we touch breaks on this truck! Looking for good door panels (specifically the pull handles), passenger front armrest (the part that contains the power window switch) passenger side A pillar trim, and...
  14. Matt69olds

    Unusual radio issue

    My son and I installed a Retro Sound stereo in his 92 Yukon about 6 months ago. When we first installed it, we had trouble with the radio not shutting off. I have had lots of experience with things NOT working, not do much things that won’t stop working! I checked for power on the red wire...
  15. Matt69olds

    Pictures of convenience center plugs?

    My son and I are converting his 92 Yukon from manual everything to power windows, locks and mirrors. I”Frankensteined” everything with parts from several other trucks. While time consuming, it hasn’t been terribly difficult. My question: does anyone has either a FACTORY service manual, or a...
  16. Matt69olds

    Power window/lock/mirror Frankenstein conversion??

    Greetings. I am attempting to convert my sons fully manual 92 Yukon to power everything using a bunch of junkyard parts. Normally, I would be one of the first to tell people to consult a manual, but since I’m not exactly sure what year/model all these parts came from I don’t know where to look...
  17. Matt69olds

    Patch panel to “fix” hole in bed from former 5th wheel hitch??

    The donor bed on the family 81 GMC came from a 1 ton truck with a 5th wheel hitch. I’d like to cover the hole with something other than plywood so the bed is usable. Anyone in readerland have an absolutely trashed or rusty bed with a section of bed floor in solid shape? The bed came from a...
  18. Matt69olds

    Fuse box from 80ish up square?

    Anyone in readerland with a seriously hacked up wiring harness? I’m looking to install a ATO style fuse box in my sons 71 El Camino. This will be a Frankenstein project, but nothing we didn’t anticipate. I built my own dash harness years ago for my 69 Olds. I used a fuse box and bulkhead...
  19. Matt69olds

    92 Yukon interior parts needed (maroon color)

    Looking for passenger side seat recline lever, and drivers side A pillar trim piece that goes along the inside of the windshield, and up above the door opening. Recline lever looks like this, and this appears to be the correct color. 30 years of sun fade has no doubt changed the color.
  20. Matt69olds

    Replacement parts for bed cover?

    I have a cover on the bed of my Ram. I bought this cover during the dark period of Covid. I got it thru summit racing, at the time that was all that was available. One of the hold down clamps is broken. I called Summit, they tell me the manufacturer has discontinued that model and no parts are...
  21. Matt69olds

    Different brake codes?

    Had to replace a brake hose on the 81 GMC. The truck makes a HARD left turn whenever you hit the brakes, and once you release the brakes it takes a couple seconds before the truck would start to roll. Obviously, the hose has collapsed internally. Once I got it back together no matter what, I...
  22. Matt69olds

    Secret to axle removal with Gov Bomb differential????

    This 92 Yukon rear end is REALLY starting to piss me off!!! Trying to replace a rear axle seal. Pretty straightforward (I thought) something I have done dozens of times before. Unfortunately, the cross pin bolt broke. I’m almost 50 years old, been fooling around with cars and trucks since I...
  23. Matt69olds

    I need a detailed ECM pinout diagram

    I have been searching for a intermittent misfire on my 92 Yukon. Occasionally, the #1 injector (the on on the passenger side) won’t pulse. No injector pulse, swapping injector plugs and the problem follows the connector. Make a long story short, the dark blue wire (#1 ground) terminal was push...
  24. Matt69olds

    Rumble strip sensation while driving???

    Number one son called me from his truck (92 Yukon) saying his truck felt weird. When I go for a drive with him, occasionally, around 30-35 mph the truck feels like your driving on the rubble strip on the highway. It starts immediately, and and stops just as quickly. It doesn’t do it all the...
  25. Matt69olds

    Gov loc differential???

    Did some routine maintenance on my sons 92 Yukon, noticed the rear tires turn opposite from each other when rotated by hand. Classic example of a open rearend. However, the RPO code shows G80 which is locking differential. If I remember correctly, these trucks have the dreaded Gov-bomb diffs...

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