{
  "factory_source": "https://www.spridgets.de/downloads/Parts-1977.pdf#page=151",
  "factory_read": "PDFp151/printed107-F14 visually read. GSA149RH/GSA150LH, paired lower barrels/crosspiece, upper case and four body-bolt/washer/nut roles. No dimensioned profile or applicable rear-damper removal procedure.",
  "supplier": "https://www.mgocspares.co.uk/parts/mg/midget/suspension-steering/rear-suspension",
  "supplier_images": [
    "https://www.mgocspares.co.uk/ImageHandler/128279w1000h1000/GSA149E?sequence=128279&width=1000&height=1000",
    "https://www.mgocspares.co.uk/ImageHandler/128281w1000h1000/GSA150E?sequence=128281&width=1000&height=1000"
  ],
  "supplier_read": "Both handed refurbished comparison photos visually read: paired barrels, lower crosspiece/plug, compact upper body and projecting shaft boss. No scale tracing, fitted identity, damping specification or reconditioned casting selection.",
  "inaccessible_comparisons": "RimmerGSA149P/GSA150P direct image requests returnedHTTP errors; not read or used.",
  "owner_dimensions_applied": false,
  "nodes": {
    "left": {
      "limits": "Factory Parts-1977 p151/printed107-F14 supplies GSA149RH/GSA150LH and four HZS612 mount bolts with PWZ206,WA110061,LWZ206 washer roles and GHF223 nuts. MGOC GSA149E/GSA150E photos support paired lower barrels, lower crosspiece/plug, compact upper case and shaft boss. Refurbished comparisons are not fitted identities. Main86x80x100mm case,5mm cavity sections,10mm corner radius,17mm back flange,22/17mm outer/inner barrel radii,80mm barrel length,27mm barrel Z offsets,14mm crosspiece radius,6mm cover and shaft-bore allowance are estimates. Empty cavities are not hydraulic internals, pistons, valves, oil paths or a working bearing. Original output-shaft axial bounds, arm/link axes and body mounting references remain; shaft radius18mm, case boss25mm, arm root27mm and root half-width24mm replace the oversized inherited sections as qualitative supplier-photo-guided construction under a chosen100mm case-face reference; no scaled tracing or actual diameter is recovered. Existing separate mount ears overlap the back flange as before; they do not establish a loaded casting/clamp interface. Case profile and mirrored opposite side are estimates; no installed clearance, damping, torque, support/release procedure or verified removal path follows.",
      "estimated_case_box_mm": [
        86,
        80,
        100
      ],
      "estimated_wall_mm": 5,
      "estimated_back_flange_thickness_mm": 17,
      "retained_inboard_back_face_x_mm": 351.3666666666667,
      "estimated_barrel_outer_inner_radii_mm": [
        22,
        17
      ],
      "estimated_barrel_z_offsets_mm": [
        -27,
        27
      ],
      "estimated_barrel_y_bounds_mm": [
        260.0666666666667,
        340.0666666666667
      ],
      "estimated_cover_y_bounds_mm": [
        412.0666666666667,
        418.0666666666667
      ],
      "retained_shaft_center_yz_mm": [
        364.0666666666667,
        -1320.8000000000002
      ],
      "retained_shaft_x_bounds_mm": [
        342.90000000000003,
        469.90000000000003
      ],
      "estimated_shaft_radius_mm": 18,
      "estimated_shaft_bore_radius_mm": 18.2,
      "estimated_arm_root_outer_bore_radii_mm": [
        27,
        18.15
      ],
      "estimated_arm_root_half_width_mm": 24,
      "owner_dimensions_applied": false
    },
    "right": {
      "limits": "Factory Parts-1977 p151/printed107-F14 supplies GSA149RH/GSA150LH and four HZS612 mount bolts with PWZ206,WA110061,LWZ206 washer roles and GHF223 nuts. MGOC GSA149E/GSA150E photos support paired lower barrels, lower crosspiece/plug, compact upper case and shaft boss. Refurbished comparisons are not fitted identities. Main86x80x100mm case,5mm cavity sections,10mm corner radius,17mm back flange,22/17mm outer/inner barrel radii,80mm barrel length,27mm barrel Z offsets,14mm crosspiece radius,6mm cover and shaft-bore allowance are estimates. Empty cavities are not hydraulic internals, pistons, valves, oil paths or a working bearing. Original output-shaft axial bounds, arm/link axes and body mounting references remain; shaft radius18mm, case boss25mm, arm root27mm and root half-width24mm replace the oversized inherited sections as qualitative supplier-photo-guided construction under a chosen100mm case-face reference; no scaled tracing or actual diameter is recovered. Existing separate mount ears overlap the back flange as before; they do not establish a loaded casting/clamp interface. Case profile and mirrored opposite side are estimates; no installed clearance, damping, torque, support/release procedure or verified removal path follows.",
      "estimated_case_box_mm": [
        86,
        80,
        100
      ],
      "estimated_wall_mm": 5,
      "estimated_back_flange_thickness_mm": 17,
      "retained_inboard_back_face_x_mm": -351.3666666666667,
      "estimated_barrel_outer_inner_radii_mm": [
        22,
        17
      ],
      "estimated_barrel_z_offsets_mm": [
        -27,
        27
      ],
      "estimated_barrel_y_bounds_mm": [
        260.0666666666667,
        340.0666666666667
      ],
      "estimated_cover_y_bounds_mm": [
        412.0666666666667,
        418.0666666666667
      ],
      "retained_shaft_center_yz_mm": [
        364.0666666666667,
        -1320.8000000000002
      ],
      "retained_shaft_x_bounds_mm": [
        -469.90000000000003,
        -342.90000000000003
      ],
      "estimated_shaft_radius_mm": 18,
      "estimated_shaft_bore_radius_mm": 18.2,
      "estimated_arm_root_outer_bore_radii_mm": [
        27,
        18.15
      ],
      "estimated_arm_root_half_width_mm": 24,
      "owner_dimensions_applied": false
    }
  },
  "held_joint_nodes": {
    "left": {
      "body_center_mm": [
        406.40000000000003,
        364.0666666666667,
        -1320.8000000000002
      ],
      "arm_axis_x_mm": 466.4333333333334,
      "upper_joint_axis_yz_mm": [
        355.6,
        -1117.6000000000001
      ],
      "lower_joint_axis_yz_mm": [
        177.8,
        -1117.6000000000001
      ],
      "upper_link_case_center_mm": [
        449.4333333333334,
        355.6,
        -1117.6000000000001
      ],
      "lower_link_cup_center_mm": [
        464.40000000000003,
        177.8,
        -1117.6000000000001
      ],
      "lower_bracket_x_mm": 444.40000000000003,
      "old_arm_x_mm": 406.40000000000003,
      "new_arm_offset_from_body_center_mm": 60.03333333333334,
      "upper_nominal_shank_mm": 11.112499999999999,
      "lower_nominal_shank_mm": 12.7,
      "upper_bore_radius_mm": 6.3,
      "lower_bore_radius_mm": 7.1,
      "upper_stud_projection_x_sign": 1,
      "lower_stud_projection_x_sign": -1,
      "case_arm_axial_drawing_gap_mm": 1,
      "lower_cup_shoulder_drawing_gap_mm": 2.5
    },
    "right": {
      "body_center_mm": [
        -406.40000000000003,
        364.0666666666667,
        -1320.8000000000002
      ],
      "arm_axis_x_mm": -466.4333333333334,
      "upper_joint_axis_yz_mm": [
        355.6,
        -1117.6000000000001
      ],
      "lower_joint_axis_yz_mm": [
        177.8,
        -1117.6000000000001
      ],
      "upper_link_case_center_mm": [
        -449.4333333333334,
        355.6,
        -1117.6000000000001
      ],
      "lower_link_cup_center_mm": [
        -464.40000000000003,
        177.8,
        -1117.6000000000001
      ],
      "lower_bracket_x_mm": -444.40000000000003,
      "old_arm_x_mm": -406.40000000000003,
      "new_arm_offset_from_body_center_mm": -60.03333333333334,
      "upper_nominal_shank_mm": 11.112499999999999,
      "lower_nominal_shank_mm": 12.7,
      "upper_bore_radius_mm": 6.3,
      "lower_bore_radius_mm": 7.1,
      "upper_stud_projection_x_sign": -1,
      "lower_stud_projection_x_sign": 1,
      "case_arm_axial_drawing_gap_mm": 1,
      "lower_cup_shoulder_drawing_gap_mm": 2.5
    }
  },
  "limits": "Factory Parts-1977 p151/printed107-F14 supplies GSA149RH/GSA150LH and four HZS612 mount bolts with PWZ206,WA110061,LWZ206 washer roles and GHF223 nuts. MGOC GSA149E/GSA150E photos support paired lower barrels, lower crosspiece/plug, compact upper case and shaft boss. Refurbished comparisons are not fitted identities. Main86x80x100mm case,5mm cavity sections,10mm corner radius,17mm back flange,22/17mm outer/inner barrel radii,80mm barrel length,27mm barrel Z offsets,14mm crosspiece radius,6mm cover and shaft-bore allowance are estimates. Empty cavities are not hydraulic internals, pistons, valves, oil paths or a working bearing. Original output-shaft axial bounds, arm/link axes and body mounting references remain; shaft radius18mm, case boss25mm, arm root27mm and root half-width24mm replace the oversized inherited sections as qualitative supplier-photo-guided construction under a chosen100mm case-face reference; no scaled tracing or actual diameter is recovered. Existing separate mount ears overlap the back flange as before; they do not establish a loaded casting/clamp interface. Case profile and mirrored opposite side are estimates; no installed clearance, damping, torque, support/release procedure or verified removal path follows.",
  "workshop": "Factory parts drawing establishes roles, not support/release order, torque or a verified replacement path. Existing link branch/change point remains unselected.",
  "section_revision_basis": "Qualitative supplier-photo proportions under the chosen100mm case-face reference:18mm shaft radius,25mm housing boss,27mm arm-root radius and24mm root half-width. No scaled tracing or fitted measurement. Axes, axial shaft bounds and link endpoints retained."
}