1967 GS 400 3-speed ?

Discussion in 'The Bench' started by Topcat, May 15, 2023.

  1. Topcat

    Topcat Got TORQUE?

    I have a friend that is looking at a 3-speed 67 GS 400....with no console....is this car real ?
    How many did they make....how bad does the 3-speed kill the value ?
    Supposedly a California car......

    LMK your thoughts.

    Peace WildBill
     
    Waterboy likes this.
  2. Topcat

    Topcat Got TORQUE?

    I found the production numbers...just over 300 made....

    Peace WildBill
     
  3. John Codman

    John Codman Platinum Level Contributor

    I was going to say that the three-speed might make the car more valuable (if factory).
     
  4. BUQUICK

    BUQUICK I'm your huckleberry.

    For me it's the least desirable of the three available transmissions (original buyers in 1967 agreed), but some buyers today might prefer the 3-speed manual over a 3-speed automatic because they like pushing that third pedal.

    For anyone interested:

    upload_2023-5-15_13-45-47.png
     
    SpecialWagon65 likes this.
  5. Topcat

    Topcat Got TORQUE?

    What is the stock rear ratio on a 3-speed ?

    Peace WildBill
     
  6. Babeola

    Babeola Well-Known Member

    67 GS 400 3 and 4 speed manuals came standard with a 3.36 rear gear.
     
    BUQUICK and Max Damage like this.
  7. Topcat

    Topcat Got TORQUE?

    Thanks

    Peace WildBill
     
  8. mineseats9

    mineseats9 Gold Level Contributor

    This was one of the 3 Speed Convertibles. I bought it out of a tow lot for $500 in about 2003 or so. Got it home and got the trunk open and found the Star Wars air cleaner, base and knob in the trunk in really nice condition. Car was RUSTY! BB96D1D6-406B-4552-8AE6-FC4A97B7AF5E.png
     
  9. SpecialWagon65

    SpecialWagon65 Ted Nagel

    Remember Larry Miller /Karen Miller was a 67 fanatic and had purchased a 67 Convertible 3-speed new. I recall a magazine article like 40 years ago 0)
     
    BUQUICK likes this.
  10. BUQUICK

    BUQUICK I'm your huckleberry.


    While Larry did own multiple '67 GS400 convertibles, the car he bought new was a Blue Mist GS400 hardtop with the standard 3-speed manual transmission. He bought it new, sold it, but eventually got it back and restored it. It was at MCACN in 2022 and his widow Karen still owns it.
     
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  11. BUQUICK

    BUQUICK I'm your huckleberry.


    I never understood why the manual transmission cars came standard with 3.36 and the cars with automatics came standard with a 2.93.
     
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  12. Topcat

    Topcat Got TORQUE?

    This car he is looking at is blue with a blue bucket interior....gonna ask him this afternoon if he is going to pursue it.

    Peace WildBill
     
    BUQUICK likes this.
  13. PGSS

    PGSS Gold Level Contributor

    I wonder also..
    Engineers had a reason I guess..
    Maby because of the switch pitch on the automatic but that wouldn't answer the 68 to 69 automatic with the fixed pitch?

    Could you get a wide ratio M20 manual on any GS?
     
  14. gokitty

    gokitty Platinum Level Contributor

    I couldn't figure this out either. So,"Birdie"has a 3.36 now.
     
    PGSS likes this.
  15. BUQUICK

    BUQUICK I'm your huckleberry.


    All three transmissions have a high gear that is 1:1 so why does a manual transmission car need to be buzzing down the road at a higher rpm than the ST400 cars? Did they think old men were buy the automatics and the hot rodders were buying the manuals? :)

    My '67 GS 400 convertible was built with a 2.93 posi but my '67 GS400 sedan was ordered with "G1 Performance Axle - with positive traction Differential $42.31" and has a 3.36 gear set.
     
    PGSS likes this.
  16. Nailhead

    Nailhead Gold Level Contributor

    The 3 speed for the GS is a heavy duty Ford top loader and the gear ratios match well with the 3.36 rear. No need for the 4th gear IMO.
     
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  17. BUQUICK

    BUQUICK I'm your huckleberry.


    Doesn't matter, those automatics with the variable pitch convertors will blow both of the manuals into the weeds. :) Especially if the manual transmission still has that sloppy factory shifter ('67 was the last year before Buick wised up and switched to the Hurst shifter in '68).
     
  18. Mark Demko

    Mark Demko Well-Known Member

    The manual transmission does not have the advantage of a torque multiplier ( torque converter) so a lower rear gear is usually used verses an automatic equipped car that would use a higher gear ratio.
    This technique was used with most manufacturers.
     
    PGSS likes this.
  19. nekkidhillbilly

    nekkidhillbilly jeffreyrigged youtube channel owner

    im guessing its more to do with your first gear. prob a bigger spread in the auto than the manual. so if they went 2.93 you couldnt take off as good and had to stand on the clutch.
     
    PGSS likes this.
  20. Rich Johns

    Rich Johns Platinum Level Contributor

    A tall gear is suitable for a fluid couple torque converter in Auto Trans.

    A manual trans car needs a shorter /deeper gear to prevent slipping /burning up the clutch to get the car moving in first gear.
     

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