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  1. Matt69olds

    Detent Cable adjustment?

    Pry up on the clip here. That will unlock the adjustment slider. As long as WOT and the kickdown cable travel maxes out at the same time, you should be good. If not, you will have to get creative with brackets until they do.
  2. Matt69olds

    84 OEM Cruise Control Module/LS Swap

    I have no clue if the VSS from a 4l65 uses the same “language” as the VSS from the speedo head. Which brings up my next question: what are you using for a speedometer? A 4l65E has no speedo cable provision. If it turns out the signals aren’t compatible, pitch the factory cruise setup and run a...
  3. Matt69olds

    84 OEM Cruise Control Module/LS Swap

    Cruise control is a completely separate harness on these trucks. The cruise module gets its speed signal from the VSS on the bs l of the speedo head. The cruise servo still needs a vacuum source from the vaccum tank, the brake switch and vacuum release are still needed. Cruise servos are...
  4. Matt69olds

    Adding a speedo with trip odo, need to add the hole for the trip odo shaft

    My Olds has the Tic Tok Tach option. Factory tachometer with a clock in the center. When I first bought the car the lens was badly scratched, I’m guessing from the previous owner dragging a ring across the plastic when setting the clock. I had a flawless lens from a blank dummy gauge. I set the...
  5. Matt69olds

    Need part number on dash light holder

    GM also used a 168 bulb. It looks identical to a 194, but is a slightly higher wattage. The 168 bulb was mainly used in warning lights or turn signals so those lights would be naturally brighter than the backlighting. I remember reading somewhere that GM used bulb holders that were different...
  6. Matt69olds

    More distributor talk

    Funny this discussion came up! I was recently researching HEI calibration combinations. There are probably thousands of different advance weight/cam/spring combinations possible for the HEI. I recently found a partial list on a Pontiac and Chevelle forum. The cams help control the shape of the...
  7. Matt69olds

    Help with a hirn

    Put everything back together. Unplug the turn signal switch connector. Find the black wire in the truck side of the turn signal switch connector. Grind that wire. If the horn sounds, the problem is either the turn signal switch itself of missing parts in the coulumn. Either way, it going to take...
  8. Matt69olds

    Power door lock relay help

    I don’t think that’s a door lock relay. That’s probably why the connector doesn’t fit.
  9. Matt69olds

    Steering column interchange??

    Long story, hang with me!! I seem to recall asking this question before, but if I did I can’t find the thread. Many many years ago, I bought a very well optioned wrecked Silverado. Over the winter, I transferred the power windows, power door locks, tilt steering column, delay wipers, sliding...
  10. Matt69olds

    Steering column interchange??

    Long story, hang with me!! I seem to recall asking this question before, but if I did I can’t find the thread. Many many years ago, I bought a very well optioned wrecked Silverado. Over the winter, I transferred the power windows, power door locks, tilt steering column, delay wipers, sliding...
  11. Matt69olds

    TH400 build

    For whatever reason, HydraMatic went thru the time and effort to create a die to cast a case with thicker pan rails and the extra webbing around the extension housing. They must have felt the benefits were worth the investment. Around here, I can buy 3 BOP cores for the cost of a good Chevy...
  12. Matt69olds

    TH400 build

    Read this: great description and illustrations of the advantages of the heavy duty BOP case. https://www.ckperformance.com/Tech-Blog/2018/11/TH400-Transmission-Case-Identification-and-Interchange I have built hundreds of 400s making well over 1000hp using the stock case. Assuming the chassis...
  13. Matt69olds

    TH400 build

    Chevy transmission’s fit Chevy engines. BOP transmissions fit 3 times as many different engine, and tend to be better castings. Obviously, if the bellhousing is cracked or missing pieces, it doesn’t matter. But given the choice, I’m cutting up the cheaper and better case.
  14. Matt69olds

    TH400 build

    Good lord, don’t cut up a good Chevy case for a ultrabell!! Good Chevy cores are getting too hard to find. Find a BOP 400, those are a dime a dozen. Added bonus, they are almost always 8 bolt pumps, and if you find a early core from a land yacht, more than likely have the heavy duty case with...
  15. Matt69olds

    Putting 1984 harness into 1982 truck

    Power windows, door locks and cruise control are all separate harness that plug into the main dash harness and fuse box. Moving the dimmer switch from the floor to the steering column (or vice-versa) is easy, the wire colors are the same, as is the switch connector. Just make the wire long...
  16. Matt69olds

    Swapping Q-jet bodies and guts, Frankenstein style

    Cliffs Q-Jets. He will be able to tell you if they are compatible. Have all the casting numbers ready before you call him.
  17. Matt69olds

    Factory air cleaner/cold air setup?

    That is EXACTLY the look I’m hoping to accomplish.
  18. Matt69olds

    Wiring electric choke TBI to carb swap

    Any of the pink/black wires in the ecm harness should be an ignition feed, protected by the 10 amp ecm fuse.
  19. Matt69olds

    How to temporarily disable starter suggestions

    Remove the rotor from the distributor. Move a bunch of plug wires around. Drain the fuel tank Unplug the 3 wire connector from the distributor cap.
  20. Matt69olds

    Factory air cleaner/cold air setup?

    That’s what I’m hoping to accomplish.
  21. Matt69olds

    Factory air cleaner/cold air setup?

    Yep! That’s the setup. This is what’s under the hood of my Olds. I found the air cleaner in a swap meet years ago, the guy selling it had no clue what it was, I wasn’t sure if it was the real deal. I pieced the rest of it together with reproduction replacement parts. I’m hoping I can do...
  22. Matt69olds

    Factory air cleaner/cold air setup?

    My truck has the opening on both sides, it has a plastic filler panel in the drivers side. I doubt GM would have spent the money to stamp a hole, then design a plug to fill it up if it had no purpose. I did check, the adapter from the passenger side seems to fit the drivers side. So it appears...
  23. Matt69olds

    Factory air cleaner/cold air setup?

    This is the factory air cleaner. I got it from a mid 80s truck.
  24. Matt69olds

    Factory air cleaner/cold air setup?

    Much to my wife’s disgust, my 81 GMC is in dry dock for some much needed maintenance/upgrades. Besides the boring things like fixing the inside door handle, squealing worn out belts and hoses, and burned out instrument lamps, I have decided to “store” some of the extra parts I have accumulated...
  25. Matt69olds

    HEI Modules

    Read this: https://www.gmcmi.com/wp-content/uploads/2014/05/HEI-Testing.pdf

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