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Thread: W-Body Suspension Factory Specs

  1. #1

    Post W-Body Suspension Factory Specs

    GEN. 1 W-BODY

    Weight Distribution, f/r 65/35
    ---------------------------------
    Front Stabilizer Bar:
    Level I
    28mm
    Level II & III W/3.4 DOHC
    34mm
    ---------------------------------
    Rear Stabilizer Bar:
    Level I & II
    12mm
    Level III W/3.4 DOHC
    14mm
    ---------------------------------
    Rack and Pinion Ratio:

    REG. 15.7:1

    W/3.4 DOHC 14.0:1
    ---------------------------------
    Turns, Lock-to-Lock

    REG. 2.6

    W/3.4 DOHC 2.26
    ---------------------------------
    Turning Circle

    REG. 36.7 ft

    W/3.4 DOHC 39.0 ft
    ---------------------------------
    Wheel Base (length)

    107.5 "
    ---------------------------------
    Wheel Base (Width)

    59.5"
    ---------------------------------
    1991 Grand Prix STE
    3.4 DOHC
    1 of 792 Produced
    Extensive Mods Done

    1991 Lumina Z34
    3.4 DOHC
    Getrag 284 5spd
    1 of 30
    Canadian Z34 Models Made with the Getrag 5spd Wahoooo!

    1980 GMC Sierra Classic C25 With 18,000 ORIGINAL MILES!!!!


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  3. #2
    what are the different spring rates for W-body's with the rear carbon fiber leaf springs? I want to lower the ass of my 92 cutty but i dont know what year leaf spring i should be looking for for the weaker spring rate... only looking for like 2" - 2.5"
    1992 Oldsmobile Cutlass Supreme International
    3.4L DOHC Getrag HM-284
    1 of 85 Produced whith the manual tranny
    New addition: 1981 Dodge Power Ram W150 4x4
    6" lift, Dana 60/70, 35" County Terrain, 440c.u.i. 4bbl swap

  4. #3
    I can look it up, But from what I remember, it was for example the "El-cheapo" plain-jane lumina that had the lowest rear leaf spring rate (FE-1).
    Yours would have the FE-3 (stiffest) leaf spring and largest diameter control arm.

    Just look for a older w-body that lists the FE1 option on the part list identification tag in the trunk on the spare tire cover.
    Last edited by HayesPerformance; 04-23-2008 at 12:46 AM.
    1991 Grand Prix STE
    3.4 DOHC
    1 of 792 Produced
    Extensive Mods Done

    1991 Lumina Z34
    3.4 DOHC
    Getrag 284 5spd
    1 of 30
    Canadian Z34 Models Made with the Getrag 5spd Wahoooo!

    1980 GMC Sierra Classic C25 With 18,000 ORIGINAL MILES!!!!


  5. #4

    W-Body Spring Codes

    Contributed by: RedZMonte
    Attached Images Attached Images
    1991 Grand Prix STE
    3.4 DOHC
    1 of 792 Produced
    Extensive Mods Done

    1991 Lumina Z34
    3.4 DOHC
    Getrag 284 5spd
    1 of 30
    Canadian Z34 Models Made with the Getrag 5spd Wahoooo!

    1980 GMC Sierra Classic C25 With 18,000 ORIGINAL MILES!!!!


  6. #5
    W-Body for Life! robertisaar's Avatar
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    Posts
    5,233
    quite an update, over a year....
    1995 Monte Carlo LS 3100, 4T60E, OBD1 Conversion...for now, future plans include a 3900, T04E-46 (Knock-Off) turbo (For the 3100, ~T61 for the 3900), and a F40.
    Latest nAst1 files here!
    Need a wiring diagram for any GM car or truck from 82-06(and 07-08 cars)? PM me!

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