{
  "factory_source": "https://www.spridgets.de/downloads/Midget%201500%20WH%20Teil%201.pdf#page=13",
  "factory_read": "PDF13/printed13 and04-3 visually read in accessible AKM4071/B part1. General rear specification: six leaves,width1.49\u20131.52in/37.85\u201338.50mm,gauge.167\u2013.177in/4.24\u20134.50mm,free camber5.58in/141.7mm. No US/UK rear branch on this shared general-spec page.",
  "factory_reference": {
    "leaf_count": 6,
    "width_range_mm": [
      37.85,
      38.5
    ],
    "gauge_range_mm": [
      4.24,
      4.5
    ],
    "free_camber_recorded_not_applied_mm": 141.7
  },
  "applied_reference": {
    "width_mm": 38.175,
    "normal_gauge_mm": 4.37,
    "leaf_count": 6
  },
  "old_drawing": {
    "leaf_count": 5,
    "width_mm": 50.8,
    "projected_y_gauge_mm": 8.466666666666667
  },
  "retained": "Eye centers, spring-center X/Z datum, central main-leaf fiberY, other assembly poses. Leaf lengths/installed curve remain estimates; sixth half-length=.18 body units. Final40mm end blends are estimates to join factory-gauge rolls to retained eye axes/bore.",
  "supplier_pad_source": "https://philipsclassics.be/products/pad-rear-spring-rubber",
  "supplier_pad_photo": "https://philipsclassics.be/cdn/shop/files/aca5138_0_530x@2x.jpg?v=1723033811",
  "pad_sections": {
    "left_upper": {
      "supplier_source": "https://philipsclassics.be/products/pad-rear-spring-rubber",
      "limits": "Supplier ACA5138 comparison lists87.60mm length,44.60mm width and15.30mm center hole. Its photo shows a thin rectangular body and raised center neck. Body6mm,neck4mm and neck radius10.6mm are photo-guided construction estimates, not listed thicknesses; neck orientation away from the leaf is an installation assumption. Existing upper/lower leaf-side reference planes stay; steel plates/perches/tube/fasteners are not moved to force contact. Factory spring section and nominal pad plan do not identify this car\u2019s fitted pack/pads or prove clamping, head/recess engagement, compression, clearance, strength or removal paths.",
      "supplier_nominal_length_width_hole_mm": [
        87.6,
        44.6,
        15.3
      ],
      "estimated_body_neck_height_mm": [
        6,
        4
      ],
      "estimated_neck_radius_mm": 10.6,
      "retained_leaf_side_y_mm": 232.83333333333337,
      "estimated_body_y_bounds_mm": [
        232.83333333333337,
        238.83333333333337
      ],
      "estimated_neck_y_bounds_mm": [
        238.83333333333337,
        242.83333333333337
      ],
      "historical_unscaled_pad_y_bounds_mm": [
        232.83333333333337,
        254.8466666666667
      ],
      "owner_dimensions_applied": false
    },
    "left_lower": {
      "supplier_source": "https://philipsclassics.be/products/pad-rear-spring-rubber",
      "limits": "Supplier ACA5138 comparison lists87.60mm length,44.60mm width and15.30mm center hole. Its photo shows a thin rectangular body and raised center neck. Body6mm,neck4mm and neck radius10.6mm are photo-guided construction estimates, not listed thicknesses; neck orientation away from the leaf is an installation assumption. Existing upper/lower leaf-side reference planes stay; steel plates/perches/tube/fasteners are not moved to force contact. Factory spring section and nominal pad plan do not identify this car\u2019s fitted pack/pads or prove clamping, head/recess engagement, compression, clearance, strength or removal paths.",
      "supplier_nominal_length_width_hole_mm": [
        87.6,
        44.6,
        15.3
      ],
      "estimated_body_neck_height_mm": [
        6,
        4
      ],
      "estimated_neck_radius_mm": 10.6,
      "retained_leaf_side_y_mm": 190.50000000000003,
      "estimated_body_y_bounds_mm": [
        184.50000000000003,
        190.50000000000003
      ],
      "estimated_neck_y_bounds_mm": [
        180.50000000000003,
        184.50000000000003
      ],
      "historical_unscaled_pad_y_bounds_mm": [
        168.48666666666668,
        190.50000000000003
      ],
      "owner_dimensions_applied": false
    },
    "right_upper": {
      "supplier_source": "https://philipsclassics.be/products/pad-rear-spring-rubber",
      "limits": "Supplier ACA5138 comparison lists87.60mm length,44.60mm width and15.30mm center hole. Its photo shows a thin rectangular body and raised center neck. Body6mm,neck4mm and neck radius10.6mm are photo-guided construction estimates, not listed thicknesses; neck orientation away from the leaf is an installation assumption. Existing upper/lower leaf-side reference planes stay; steel plates/perches/tube/fasteners are not moved to force contact. Factory spring section and nominal pad plan do not identify this car\u2019s fitted pack/pads or prove clamping, head/recess engagement, compression, clearance, strength or removal paths.",
      "supplier_nominal_length_width_hole_mm": [
        87.6,
        44.6,
        15.3
      ],
      "estimated_body_neck_height_mm": [
        6,
        4
      ],
      "estimated_neck_radius_mm": 10.6,
      "retained_leaf_side_y_mm": 232.83333333333337,
      "estimated_body_y_bounds_mm": [
        232.83333333333337,
        238.83333333333337
      ],
      "estimated_neck_y_bounds_mm": [
        238.83333333333337,
        242.83333333333337
      ],
      "historical_unscaled_pad_y_bounds_mm": [
        232.83333333333337,
        254.8466666666667
      ],
      "owner_dimensions_applied": false
    },
    "right_lower": {
      "supplier_source": "https://philipsclassics.be/products/pad-rear-spring-rubber",
      "limits": "Supplier ACA5138 comparison lists87.60mm length,44.60mm width and15.30mm center hole. Its photo shows a thin rectangular body and raised center neck. Body6mm,neck4mm and neck radius10.6mm are photo-guided construction estimates, not listed thicknesses; neck orientation away from the leaf is an installation assumption. Existing upper/lower leaf-side reference planes stay; steel plates/perches/tube/fasteners are not moved to force contact. Factory spring section and nominal pad plan do not identify this car\u2019s fitted pack/pads or prove clamping, head/recess engagement, compression, clearance, strength or removal paths.",
      "supplier_nominal_length_width_hole_mm": [
        87.6,
        44.6,
        15.3
      ],
      "estimated_body_neck_height_mm": [
        6,
        4
      ],
      "estimated_neck_radius_mm": 10.6,
      "retained_leaf_side_y_mm": 190.50000000000003,
      "estimated_body_y_bounds_mm": [
        184.50000000000003,
        190.50000000000003
      ],
      "estimated_neck_y_bounds_mm": [
        180.50000000000003,
        184.50000000000003
      ],
      "historical_unscaled_pad_y_bounds_mm": [
        168.48666666666668,
        190.50000000000003
      ],
      "owner_dimensions_applied": false
    }
  },
  "limits": "Factory count/sections and supplier pad nominal plan do not identify the actual fitted pack/pad or establish loaded fit. Free camber not imposed on the installed frame. Pad6mm body/4mm neck, neck orientation and10.6mm radius are photo-guided estimates. Existing pad leaf-side planes and other assembly poses held; source gaps/head conflict reported separately. No strength, load, spring rate, safe support/release, torque or verified withdrawal path.",
  "owner_measurements_applied": false
}