Frequently asked questions about 4 speed parts..PLEASE ADD TO THIS!!

Discussion in 'U-shift em' started by gd2227, Sep 26, 2006.

  1. tdacton

    tdacton Gold Level Contributor

    Can I ask about the clutch pedal linkage to z-bar?
    What are the differences if any, are there between the years for this linkage?
    In my 72 manual, (I now have a 71, but thought it could be a starting point) the connection to the z-bar and the clutch both have a stamped 90 deg. leg with a round pin diameter to go through the hole of both matting parts.
    I have an exact appearing linkage from the z-bar into the boot through the fire wall one more bend, then at the end it has 2" of threads and an adjustable U shape that is put on this threaded end of the linkage.
    Are there different clutch rods?
    Or, maybe someone broke the pin on the clutch end and just cut the end off and threaded the rod?
    Here is a picture of what I have.
    Thanks!
    Troy
     

    Attached Files:

  2. That looks like it's broken at the pedal side.
     
  3. buick64203

    buick64203 Just plum crazy Staff Member

    Yep, looks like there's a piece of it missing!
     
  4. tdacton

    tdacton Gold Level Contributor

    Thank you for the quick response!
    If someone has a picture of a good one, maybe worth posting still.
    I have created a WTB thread, thanks again!
    Troy
     
  5. Sure. Here you go. [​IMG]
     
  6. dl7265

    dl7265 No car then Mopar

    Who has the part # for the z-bar bushings ? Looks like a little A-arm bushing . Guess I have too many threads subscripions to find it :0
    Thanks
    DL
     
  7. sriley531

    sriley531 M.M.O.G.

    Not sure who's part number you're wanting, but the parts place's number is MT21677T.
     
  8. flynbuick

    flynbuick Guest

    Same part used in a 60s Vette.
     
  9. moleary

    moleary GOD Bless America

    Last edited: Feb 8, 2015
  10. BadBrad

    BadBrad Got 4-speed?

    387-2955 Not a phone number, but a GM part number. Should come back as late 60's corvette rear suspension bushing at your Chevy dealer. Two come in the bag.
     
  11. dl7265

    dl7265 No car then Mopar

    There we go :beers2: Brad's the man.

    DL
     
  12. 69GSM21

    69GSM21 Silver Level contributor

    I have a question in reference to the consoles or whatever you guys decide to call them. I have the short one up front around the four speed shifter, but instead of the tri shields logo on the little round emblem I have a 4 speed pattern.....why? The car does have the tach, but I am not sure that it came with any of the console at all. The car is super stripped down so I'm thinking it was added by the second owner.
    -Kyle
     
  13. TCBronson

    TCBronson Member

    What and where to buy a complete Muncie 4 speed set up for a 1970 GS455? Will any Muncie M20 or M21 work? Complete, meaning shifter with linkage, ready to bolt in. M20 vs M21 difference, which is the desirable one to try to find. The car currently has a Saginaw 4 speed.
    Thanks in advance!
     
  14. rtv72

    rtv72 Founders Club Member

    Kyle,
    To the best of my knowledge (90% sure) you have a 69-70 consoles and they had the 4 speed pattern and you need to use a black shifter ball with no 4 speed pattern on it, just black. Did you look for the build sheet? Check behind the rear seat or on top of the fuel tank. If you find it, it will tell the story.

    Ron
     
  15. rtv72

    rtv72 Founders Club Member

    The 69-70 big block clutch set up is different from the small block and other years. The Z-bar and Clutch fork are the two main differences. The z-bar had a bushing on the pedal rod side and the clutch fork had a pin with round eyelet and bushing. There was someone I believe on this board who reproduced them. I think his name was Dave Kliner. Sorry I don't have his number. Maybe some her can help out! Very rare to fine an original.

    Ron
     
  16. sriley531

    sriley531 M.M.O.G.

    M20 is a wide ratio gear set, M21 is close ratio. M20 will have a lower (higher numerically) first gear which makes it a bit more friendly with cars with higher (lower numerically) rear end gears. The one that's more desirable is the one that fits your application better! You didn't mention this specifically, but the M22 is usually the most desirable as it is a close ratio with gears cut at a different angle to aid in strength.

    I have an M21 in my car with a 3.42 rear and it plays pretty nice together.
     
  17. TXGS

    TXGS Paint by numbers 70 GS 455 4spd

    A while back i asked about the brake pedal on a power disk car with 4spd. Rich Johns was able to provide these pics Picture 083.jpg 68 GS 400 003.jpg Picture 083.jpg 68 GS 400 003.jpg Picture 083.jpg 68 GS 400 003.jpg Picture 083.jpg 68 GS 400 003.jpg Picture 083.jpg 68 GS 400 003.jpg
     
  18. buick64203

    buick64203 Just plum crazy Staff Member

    Im 99% sure that Buicks with sticks and discs didn't get that pad.
     
  19. flynbuick

    flynbuick Guest

    Only automatic trans Buicks got the brake pad with the disc brake insert.
     
  20. TXGS

    TXGS Paint by numbers 70 GS 455 4spd

    Thanks for sharing. your thoughts Jim and Jason. I am starting to put my 70 GS 455 4spd back together however it is from leeds and not flint.
     

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