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1995 carry front spring replacement

Discussion in 'Suzuki Carry' started by kip thompson, Nov 30, 2021.

  1. kip thompson

    kip thompson Member

    So, with all of my research regarding the the height and inside diameter I found the springs are 10 inches high and 2.5 inches inside diameter. This is what is listed as the factory specifications. I measured the inside diameter and it actually is 2.75 inches. Has anyone else seen this.
     
  2. t_g_farrell

    t_g_farrell Active Member

    What did you measure to get the 2.75? Your current springs? The spring seat?
     
  3. t_g_farrell

    t_g_farrell Active Member

    FYI, I just checked and the part numbers for springs on vans is not the same as for mini trucks.
     
  4. kip thompson

    kip thompson Member

    My spring seat
     
  5. t_g_farrell

    t_g_farrell Active Member

    So I just measured my front springs on my van. I used this formula to calculate the spring rate from my details

    [​IMG]

    Detailed measurements:

    d - wire diameter
    G - constant for steel springs
    D - inside diameter of spring
    N - Number of active coils when mounted
    Also the free length of the spring (no load) is 8.5 inches.

    d 10mm = .39 in
    G 11,250,000
    D 70mm = 2.75 in
    N 6.5

    (.39*.39*.39*.39)*115000000/(8*(2.75*2.75*2.75)*6.5)
    266,045/1081= 246 lbs/in spring rate.

    So my conclusion is I have 250 lb springs. Also note these are metric springs and the stock mounts would not work with the generic coil over 2.5in I.D. springs that are out there.
     
  6. kip thompson

    kip thompson Member

    So the ID of the springs has to be 2.75 inch’s good job on the math, way over my head
     

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