I know I have 3:42’s....what does the rest of the axle tube code mean?

Discussion in 'Got gears?' started by Canadian GS 350, Mar 10, 2019.

  1. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Do all big and small block GS come with the rear braces?

    I thought small block cars didn’t.....but guess I was wrong

    Attached Files:

  2. BrianTrick

    BrianTrick Brian Trick

    B for Buick
    040 is the 40th day of the year,which would be February 9th.
  3. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    I believe all GS got the braces.
    Mark Demko likes this.
  4. monzaz

    monzaz Jim

    Yep by the time 1970 rolled in ... ALL Monte Carlos had them standard. Just help triangulate the frame more for rigidity. They make upgraded tubular in the aftermarket know too.
    I would say any performance F41 suspension package got the frame stiffeners installed for sure. I am sure a BOOK GURU will chime in soon. :)
  5. Dr. Roger

    Dr. Roger 1971 GS

    According to service manual, all GS models regardless of engine came with the rear braces. It's another thing to look for to determine if it is a real GS.
  6. monzaz

    monzaz Jim

    Yep, Same a s a Monte. ALL of them got the rear braces.
    Likely 442 Gto etc got the same deal on the diagonal braces.
  7. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Well now I have tubular after market and stock braces!

    So - if you had a choice - use the stock braces, or the tubular after market?
  8. DasRottweiler

    DasRottweiler -BuickAddict-

    Tubular, unless it important to you to keep your car stock. Jim
  9. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Tubular braces it is then. I’ll put the stock ones away with the stock control arms as well.
  10. agetnt9

    agetnt9 Agetnt9 (Dan)

    Manual trans cars got them too, skylark
  11. BrianTrick

    BrianTrick Brian Trick

    Put a posi in it. That’s the easier half. You already have the 3:42’s in it.
  12. Canadian GS 350

    Canadian GS 350 Well-Known Member

    Have a 30 spline Eaton, moser axles ready to go once I pull the rear for detailing. Have Johnny joints for the casting ears and polyurethane for the rest of the custom built control arms, and a 1 inch sway bar and air bags to install. Went with the 1350 pinion yoke...... next Spring - do the turbo 400 build.
  13. DasRottweiler

    DasRottweiler -BuickAddict-

    Grunt grunt grunt......

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