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  1. Matt69olds

    Anyone running an 8.1, what trans are you using?

    A used 4L80 a good valve body kit will easily handle far more than the 8.1 will produce.
  2. Matt69olds

    New Courtesy lamp switch is too long to let the door close.

    The grounding sleeve is a tight press fit into the switch housing. It self adjusts when you close the door. Slowly close the door, the sleeve will slide ito the housing and stop where needed.
  3. Matt69olds

    Exhaust Cut-Out Performance

    Check out some the exhaust episodes of engine masters. While not an apples to apples comparison, their test did explain some of the myths and theories of exhaust.
  4. Matt69olds

    4l80e rebuild gone wrong...

    Cracked reverse servo piston? Or defective seals on the accumulator piston inside the servo? I don’t have a hydraulic chart handy, if 2nd clutch oil was leaking into the band apply it might stroke the piston just enough for the band to drag, causing the bind up sensation. Might be worth...
  5. Matt69olds

    700R4 Skipping 2nd Gear

    And reverse I bet.
  6. Matt69olds

    Factory AM/FM cassette radio

    I looked today, I only have the white plug which I believe is front speakers. I have some friends looking thru their extra junk, hopefully someone has a complete set so I can test this.
  7. Matt69olds

    Factory AM/FM cassette radio

    I’ll know more if I have the plugs.
  8. 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...
  9. Matt69olds

    Has anyone used an Edelbrock Rochester Quadrajet carburetor?

    What part number do you hace? I have 2 of the Edelbrock 1910 (the 850cfm version) carbs, without a doubt the best carb I have personally owned. I had a 750, 850, and 950HP series Holley on my Olds, the all ran just a tad slower and didn’t drive nearly as well as the Q-Jet. Depending on what...
  10. Matt69olds

    Speedometer refuses to work. Any help is appreciated

    Is the drive gear in the output shaft? Raise and properly support the rear of the truck so the termites are free to turn. Disconnect the speedo cable, put the shifter on neutral. Spin the driveshaft by had, make sure the driven speedo gear turns. If not, you need to figure out why. There...
  11. Matt69olds

    Used a drill to check speedometer forgot I had drill on two and the speedometer spun all the way around

    I have used a 20v Dewalt cordless drill to check the function of the Gear Vender on my car. It’s designed to automatically engage at around 45mph, the drill makes it easy to check. Right at 45 mph you can hear the solenoid click. Anyway, my drill will easily put the speedometer needle at 115...
  12. Matt69olds

    R12 to 134. Whats really needed to do this swap for a great working system. All parts needed?

    My sons 92 Yukon had been sitting for 20 years before he bought it. When we decide to tear into the A/C we replaced the head hoses (something had chewed holes in the hoses) I replaced all the o rings, I attempted to replace the orifice tube, unfortunately I couldn’t get it to come out and...
  13. 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...
  14. Matt69olds

    Odd “knocking” noise at high RPM while WOT

    When in doubt, cut the oil filter open. If there is internal issues, you will see the shrapnel in the filter long before you hear anything. If the filter is clean, safe to say it’s not a disaster problem. What’s the total timing, and does the vacuum advance make a difference?
  15. Matt69olds

    R12 to 134. Whats really needed to do this swap for a great working system. All parts needed?

    The rule of thumb is 134A charge capacity is 80% of the R12. I have done many 134A conversions with zero changes, they all worked well. There are minor differences, since 134A isn’t as good a refrigerant, there is room for improvement. The 134A condensers are more efficient, and I wouldn’t be...
  16. Matt69olds

    General Motor Swap Questions

    As long as the distributor and carb are tuned correctly there should be no issue using them. As far as the water pump, that’s a pretty cheap part. Unless it’s fairly new I’d personally replace it. It would suck to get the truck running well only to have it start leaking a week later. As far as...
  17. 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...
  18. Matt69olds

    Dual axle trailer brakes worth it?? Pic's inside

    30 years ago I went to college in Dayton Ohio, I made the Indy to Richmond drive every weekend for 2 years. I70 was under construction then, I don’t think it has ever stopped. As bad as indiana roads are, there are sections of I69 in Michigan near Lansing that are 10 times worse.
  19. Matt69olds

    Dual axle trailer brakes worth it?? Pic's inside

    Indiana must have received a HUGE amount of money for road repairs recently. There is more construction happening now than I can ever recall. Years ago indiana use to have license plates with a slogan that said”Wander Indiana”. I think it needs to make a return, with all the detours I have...
  20. Matt69olds

    1987 Chevy v10 parasitic draw

    Watch this: If you pull all the fuses and the draw is still there, disconnect all of the alternator wiring. If the draw is still there, then something is wired that isn’t fused in the fuse box. If the draw is gone with the alternator disconnected, you have a leaky diode in the alternator.
  21. Matt69olds

    Dual axle trailer brakes worth it?? Pic's inside

    What’s your car and truck worth? In my opinion it’s a no brainer. My first car trailer had brakes on just the front axle, you could tell the brakes were better after adding rear brakes. I have heard numerous people say Indiana requires brakes on each axle. The story I heard is dealers get...
  22. Matt69olds

    Gear Vendors OD

    I have a gear vender in my Olds. While it does work and do what it’s intended to do, if I were to do it over again I’d go 4L80 without hesitation. The ability to program shift points and shift quality is a huge benefit. The lockup converter is probably the biggest benefit. I did a couple...
  23. Matt69olds

    Best way to run power from truck battery to trailer winch. Quick disconnect ends.

    I have a harbor freight 12k winch mounted on my trailer. I power it with the largest automotive battery that would fit in a battery box. I have the trailer wired to charge the battery whenever it plugged into the truck thru the 7 way plug. As long as you have a good battery it should hold a...
  24. Matt69olds

    Instrument Panel Lights Staying on When Truck is Off

    Unplug the headlight switch. If the dash lights go out, the headlight switch is powering the lights when it shouldn’t. I’d call the manufacturer first, maybe they have some other ideas.
  25. Matt69olds

    Where are you tapping into for ACC power?

    There are 4 power taps on the left side of the fuse box that are hot in acc and run, they are protected by the GAUGES fuse. There are a couple fuse taps labeled BAT that are powered at all times, they are protected by the courtesy lamp fuse or circuit breaker if door lock equipped. If the acc...

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