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  1. Keith Seymore

    79 GMC Street Coupe - Stock Drivetrain

    Agree. I've never seen a crankshaft laying on the dragstrip. Except for this guy (and I think we can all agree there is something extenuating going on there).
  2. Keith Seymore

    Let's talk one man brake bleeder

    I've done them all. I hate them all with a passion that burns brighter than the fires of Hell. Except Ricko1966's vacuum set up. Gonna have to give that a try (I'm presently converting my Chevelle from power disc/drum to manual disc/disc. Like this very minute). K
  3. Keith Seymore

    Missing a bit of side molding on my 85 scottsdale...

    You could do them separately. RPO V22 Uplevel grille was available on Scottsdale (as a stand alone option) and required on YE9 Silverado. B84 Black trim was standard on Scottsdale but you could opt up to B85 Chrome trim, required on Silverado. You might be thinking of the way B85 appears on...
  4. Keith Seymore

    79 GMC Street Coupe - Stock Drivetrain

    Quick sidebar on this SPID: note that the front and rear tires are different. XLB = front tires, hwy YLC = rear tires OOR ZLC = spare OOR That's why we released them that way (X = front, Y = rear, Z= spare) so that the customer could have different tires front, rear and spare (or no spare). K
  5. Keith Seymore

    79 GMC Street Coupe - Stock Drivetrain

    Keep in mind "HD" in the truck world means "better durability", not "high performance/race car stuff". For trucks heavy duty applications will use lower compression ratios and other design features to facilitate long life, not going fast. Re: yellow arrow - no - that is not a marking we used...
  6. Keith Seymore

    79 GMC Street Coupe - Stock Drivetrain

    No. The "4" is where they started to say "4 bbl carb" and just ran out of space. K
  7. Keith Seymore

    TH400 build

    ...like it was when I broke the axle. K
  8. Keith Seymore

    TH400 build

    Long sidebar about the above: 1 - That happened in Columbus. Two years in a row I destroyed something and was parked in that same pit spot. I said to my buddy "man - I don't know what I'm going to do" and he replied "well - I'd start by parking somewhere else!". 2 - I knew I was in trouble...
  9. Keith Seymore

    Rear brakes locking up information for you

    It holds the front brakes off until the rear shoes can take up the clearance and contact the drum. On the brake chart is is called "metering" (the characteristics of the proportioning are called "metering", "split" and "slope"). K
  10. Keith Seymore

    TH400 build

    It happens. It is. K
  11. Keith Seymore

    Rear brakes locking up information for you

    Exactly. It's like buying a generic carburetor and setting it on and expecting it to work. K
  12. Keith Seymore

    79 GMC Street Coupe - Stock Drivetrain

    Looks like it was built in Fremont ("Z" in the VIN). Model decodes as T = GMC nameplate C = 2wd 1 = 10 series 1/2 ton 07 = short wheel base 03 = 2 door regular cab
  13. Keith Seymore

    79 GMC Street Coupe - Stock Drivetrain

    There might be some additional detail here: Link==>https://www.gm.com/content/dam/company/no_search/heritage-archive-docs/vehicle-information-kits/chevrolet-trucks/1979-Chevrolet-Truck.pdf
  14. Keith Seymore

    TH400 build

    Came here to make this point. K
  15. Keith Seymore

    TH400 build

    What's the motivation for using an SFI bell housing? How quick is the Chevy II? K
  16. Keith Seymore

    PSI 8.8L big block

    I can see pics. I am reminded I am the guy that requested GM Powertrain kick that throttle body attachment up at an angle. We had to be able to get past the engine cooling fan and accessory drive so we could mate up our air cleaner ductwork on the truck models. K
  17. Keith Seymore

    PSI 8.8L big block

    Greetings from Williamston MI. K
  18. Keith Seymore

    Broken U-Joint Strap Bolt Question

    You could put a heli-coil in it. K
  19. Keith Seymore

    To buy or not to buy, for daily usage.

    On low mu test surfaces ("gennite" and basalt tiles). We did all the early ABS development at the Desert Proving Ground in Mesa in the late 80s/early 90s. I was just remembering we had a hard time getting our work done because the Marketing folks always had the surface in use for photo shoots...
  20. Keith Seymore

    To buy or not to buy, for daily usage.

    In order to validate vehicles for FMVSS105 and 208 (so that we could sell them to the public) we had to run tests in both 2wd and 4wd. There was no measureable difference in terms of stopping distance. K
  21. Keith Seymore

    To buy or not to buy, for daily usage.

    ....
  22. Keith Seymore

    84 c10 4 speed manual, rpo code MM7

    Yes. That's the main reason I ordered it. More details: https://www.gmsquarebody.com/threads/who-bought-their-square-body-new.37228/#post-771027 K
  23. Keith Seymore

    84 c10 4 speed manual, rpo code MM7

    I mean - not that I'm aware of. Sometimes people surprise me but I am not aware of any tally of production volumes for square body trucks. The common understanding is that they were lost in a fire (although - I don't remember any "fire", either). The only number I know is that we used a...
  24. Keith Seymore

    84 c10 4 speed manual, rpo code MM7

    No. K
  25. Keith Seymore

    New to Squarebody's. Need assistance

    Cab marker lights (RPO U01) were a free flow option and could be had with any truck. Required on any vehicle over 80" wide. K

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