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  1. Keith Seymore

    Would be interested in thoughts about tonneau cover options for a 79 longbed.

    I have some thoughts: 1 - I wouldn't do a one piece. The 2015 I just bought had a one piece on it and the problems were two fold: a - if you had to haul something that wouldn't fit under the cover then you'd have to take it off. That could be a one person job, with some cleverness, but was...
  2. Keith Seymore

    Richmond gear is this a 3.73

    3.73 should be 41 on the ring, 11 on the pinion (ie 11:41 or 41:11 as stamped in the gear). K
  3. Keith Seymore

    Emissions question

    I have no recollection of how I found this. Just google, I think. K
  4. Keith Seymore

    Emissions question

    I didn't suss it out line by line but I think we are saying the same thing. The only item I would take issue with is the picture of the G Van exhaust, which would not be correct for this discussion (it shows a cat). G Van sizes are staggered a little bit compared to square pickups, that is: a...
  5. Keith Seymore

    Richmond gear is this a 3.73

    Count the number of teeth on the ring gear and divide by the number on the pinion. That's the ratio. K
  6. Keith Seymore

    Emissions question

    Abbrevs:
  7. Keith Seymore

    Emissions question

    According to the info packet the LT 235 is the base tire with C6P. K
  8. Keith Seymore

    Emissions question

    You've reminded me of something: for LD emissions the TRUCK is what gets certified, so the emissions/tune up label goes on the rad support. For HD emissions the ENGINE is what gets certified, so the emissions/tune up label goes on the engine air cleaner. 84GMCSierra - you might check your air...
  9. Keith Seymore

    Emissions question

    Totally off topic, but I see it came with load range D front tires and load range E rear tires, and no spare. Been a while since I've seen one with different tires front to rear. K
  10. Keith Seymore

    Emissions question

    I was not able to find the detail I was looking for in the '84 generic info packet, but I found it in the '83 packet. I don't recall that there was any difference for '82 through '86 so it should be appropriate. I also checked the '85 information and it was the same as '83. See page 114 of...
  11. Keith Seymore

    Emissions question

    Correct. That's an easy one since C6P = 8600 lbs GVW K
  12. Keith Seymore

    Intro from an old Assembly Plant guy

    I had a new reproduction window sticker made for the red truck. This was done by [email protected]. We did everything we could to make it as accurate as possible, using the original invoice, original SPID, and other contemporaneous references. K
  13. Keith Seymore

    Looking At A 2005 Z71 4x4

    Ha! Yes - K
  14. Keith Seymore

    Dexron II or Manual Transmission Oil??

    Yes. M20 is the RPO code for the SM465.
  15. Keith Seymore

    Dexron II or Manual Transmission Oil??

    They are referring to the New Process A833, which is the three forward gears plus overdrive trans. It uses auto trans fluid. The M20 with the creeper gear uses gear oil. K
  16. Keith Seymore

    Project is stalled. Cannot solve brake problem

    Joining late; skimmed the thread and didn't see where he admitted going from manual brakes to power brakes - but - by way of help: Manual brake pedal ratio (A/B) = 6.5:1 Power brake pedal ratio A/B (vacuum boost) = 4.5:1 Power brake pedal ratio A/B (hydroboost) = 5.6:1 K
  17. Keith Seymore

    Axle ratio help

    Correct. For base axle GQ1 the SPID shows GQ1 but doesn't specify the numerical ratio, because it varies (as shown on the Powertrain Chart). For an optional ratio: The SPID will show the RPO and call it out by name (ie, GU6 = 3.42, GT4 = 3.73, GT5 = 4.10 or whatever). K
  18. Keith Seymore

    Axle ratio help

    Well done, Lego. Just to flesh it out a bit more: I see C20903 W LT9 with the three speed auto (non overdrive = MX1) so I'd call it 4.10:1. K
  19. Keith Seymore

    Coil Spring Insulators?

    Don't hold me to it but I don't recall it having them in either the top or the bottom. K
  20. Keith Seymore

    1973 - 1987 Step Side fender splash aprons

    We used to call those "B96 Nails". If they hit torque but did not fully seat the assembly line repair man would whack 'em with a hammer (rather than get a screwdriver) to set them down flush. K
  21. Keith Seymore

    1973 - 1987 Step Side fender splash aprons

    Nope. You are not missing anything. Zach - on the other hand - is missing this B96 molding screw right here. ;) I'd check that LR tire. K
  22. Keith Seymore

    1973 - 1987 Step Side fender splash aprons

    I am sorry to hear that. Keep in mind we built 15 million squarebodies. If 10% were stepside beds then that's still 1.5 million trucks. If those trucks went 100,000 miles then that would be 150,000,000,000 miles without a fuel tank related incident, that I am aware of. You might consider...
  23. Keith Seymore

    Rear Window size question

    Agree. K
  24. Keith Seymore

    Body swap on a c10 1981 to a 1985 k1500

    This. Column shifted 2wd (ie, auto trans, or three on the tree) = low hump Manual shifted 2wd (ie, M20 with creeper, or MY6 overdrive) and 4wd are all high hump. There might still be enough clearance to go from high hump to low hump because the factory put enough margin in there to account...
  25. Keith Seymore

    67 Mile V10

    I didn't. I followed my truck down the line as it was built and drove it to the shipping building myself. It never occurred to me until modern days that I should have kept any paperwork (build sheets, inspection tickets, window sticker). K

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