{
  "scope": "Catalog-sized tank reference and shared estimated mounting planes, not fitted RO9F identification or actual-car clearance.",
  "source_groups": 7,
  "valid_native_solids": 32,
  "all_parts_valid": true,
  "mesh_max_relative_volume_error_percent": 0.09325227319745277,
  "mesh_errors_percent": {
    "fuel_tank_hollow_shell_flange_seat_and_open_necks_comparison": 0.010505295982221607,
    "fuel_sender_plain_head_underside_and_terminal_envelopes": 0.09304064211569374,
    "fuel_sender_uncompressed_annular_seal_comparison": 0.0931148228669354,
    "fuel_sender_lock_ring_and_generic_tool_lugs_comparison": 0.06572344920725559,
    "fuel_tank_six_body_stud_and_weld_base_envelopes": 0.09314687277246492,
    "fuel_tank_six_plain_shakeproof_and_smooth_nut_envelopes": 0.09325227319745277,
    "fuel_tank_two_long_two_short_thin_seating_strip_comparisons": 1.3322676295501878e-13
  },
  "old_shell_bounds_mm": {
    "x": [
      -372.5333333333,
      372.53333333333
    ],
    "y": [
      203.2,
      421.21666666666
    ],
    "z": [
      -1718.733333333,
      -1244.6
    ]
  },
  "new_shell_bounds_mm": {
    "x": [
      -361.95,
      361.95
    ],
    "y": [
      256.88,
      460.08
    ],
    "z": [
      -1665.816666667,
      -1297.516666667
    ]
  },
  "catalog_bounds_under_declared_datum_interpretation": true,
  "unloaded_strips_share_estimated_floor_and_flange_planes": true,
  "prior_selected_neighbor_contacts_mm3": {
    "tank_shell_flange__rear_left_local_shackle_floor_doubler_and_open_returns_reference": 595.5149,
    "body_stud_envelopes__rear_left_local_shackle_floor_doubler_and_open_returns_reference": 301.5929,
    "body_stud_envelopes__rear_left_three_fixing_shackle_bracket_cheeks_and_open_sleeve_comparison": 150.7964,
    "tank_shell_flange__rear_right_local_shackle_floor_doubler_and_open_returns_reference": 595.5144,
    "body_stud_envelopes__rear_right_local_shackle_floor_doubler_and_open_returns_reference": 301.5929,
    "body_stud_envelopes__rear_right_three_fixing_shackle_bracket_cheeks_and_open_sleeve_comparison": 150.7964,
    "tank_shell_flange__rear_left_formed_damper_and_upper_strap_body_panel_comparison": 1066.8,
    "body_stud_envelopes__rear_left_formed_damper_and_upper_strap_body_panel_comparison": 226.1947,
    "tank_shell_flange__rear_left_rubber_bumper_open_floor_beam_and_bored_endplate_comparison": 330.2,
    "tank_shell_flange__rear_right_formed_damper_and_upper_strap_body_panel_comparison": 1066.8,
    "body_stud_envelopes__rear_right_formed_damper_and_upper_strap_body_panel_comparison": 226.1947,
    "tank_shell_flange__rear_right_rubber_bumper_open_floor_beam_and_bored_endplate_comparison": 330.2
  },
  "selected_neighbor_contacts_mm3": {
    "tank_shell_flange__rear_left_local_shackle_floor_doubler_and_open_returns_reference": 7981.5292,
    "body_stud_envelopes__rear_left_local_shackle_floor_doubler_and_open_returns_reference": 301.5929,
    "body_stud_envelopes__rear_left_three_fixing_shackle_bracket_cheeks_and_open_sleeve_comparison": 150.7964,
    "tank_shell_flange__rear_right_local_shackle_floor_doubler_and_open_returns_reference": 7981.5293,
    "body_stud_envelopes__rear_right_local_shackle_floor_doubler_and_open_returns_reference": 301.5929,
    "body_stud_envelopes__rear_right_three_fixing_shackle_bracket_cheeks_and_open_sleeve_comparison": 150.7964,
    "tank_shell_flange__rear_left_formed_damper_and_upper_strap_body_panel_comparison": 1196.4191,
    "body_stud_envelopes__rear_left_formed_damper_and_upper_strap_body_panel_comparison": 314.4964,
    "tank_shell_flange__rear_right_formed_damper_and_upper_strap_body_panel_comparison": 1196.4191,
    "body_stud_envelopes__rear_right_formed_damper_and_upper_strap_body_panel_comparison": 314.4964
  },
  "unchanged_source_hashes": {
    "rear-body-mount-reference.json": "edf2760a32847e7adcd14a6759a5d001f6167259abb6183f93717111ed71404e",
    "rear-body-mount-reference.step": "97e82ac65f4b2a63b2cd871e945d84122232d91761b92831710e359513eec456",
    "rear-frame-reference.json": "c2f4813d1a2f5858bb96287f36a80250ac475053f23e4fba7ef3f4ba317c8954",
    "rear-frame-reference.step": "7faac9429b261976b09612dc11f5802a8b297c4edfe6b09e5f2c6dfbcee5c980",
    "boot-lid-reference.json": "44cd3b455e4f7e330f172fc47801ce8bae994f5d04cbd67edc7b567a6be18e79",
    "boot-lid-reference.step": "15fc01b7c5e00c014a7f700f550296a4698f4b4cb208349b37a4f5e8ac7b5b72",
    "folded-hood-reference.json": "df738e7c66f39d70eeabae45abd279354cdbb60e2449bd2cc63bdba82469b609",
    "folded-hood-reference.step": "c96d1767122e8ecec83cdf40e86f538032e588d33bfdd7b7c613dae8bd7cc312"
  },
  "port_floor_gap": "Filler/vapor X/Z and original body holes remain unregistered. Vapor neck crosses the independent floor plane away from its old vent-hole cue; source topology does not verify this route.",
  "owner_dimensions_applied": false,
  "limits": "No direct owner dimensions, fitted tank/sender identities, capacity, load or common body registration are applied. Factory ELC p90 BRA960/ARA1501/ARA1502 sender/lock/seal is a configuration comparison, distinct from earlier six-screw sender units and later tank branches. Factory non-ELC p89 lists six mounting nuts/plain/shakeproof washers; supplier mounting description independently supplies six body-welded studs and two-long/two-short seating-strip roles, not proof of this car. Supplier generic tank/sender narrative disagrees with factory early GAN6 locking-ring coverage; no fitted branch is selected by that narrative. Body sheet thickness now uses the RO9F catalog comparison; all remaining pressing, flange, opening, boss, terminal, lug, mount map, stud/retainer and strip dimensions are estimates. The subsequent manufacturer-envelope revision replaces the old plan/height. RO9F catalog width/length/height and sheet thickness are reference specifications, not fitted-car dimensions. Interpretation of overall lip bounds and neck-inclusive height is assumed; pan/neck split uses an uncalibrated manufacturer front-view ratio. Filler/vapor X/Z and radii remain inherited unmeasured drawing choices, not RO9F port coordinates. No capacity or fluid-volume fit is performed. Six bores retain their Z stations but their X axes follow the revised flange at10mm from each side edge; they are not a drilling/fabrication template. Stud weld-base envelopes attach to the old low-floor underside datum without inventing body through-holes. Existing rear shackle/damper/reinforcement references are not moved to manufacture fit. Body/tank mounting registration remains unresolved; source contact with nearby structure is not a fitted interference finding. The flange now sits1mm below the estimated floor underside and separate1mm strips span that construction gap. This replaces the previous approximately20mm unsupported drawing gap; it is not measured compression or actual installed support. Sender internals, float/arm travel, pickup/strainer, drain variant, electrical calibration, actual lock cams and thread/retention are not reconstructed. The former sender outlet-like rod cue is removed; terminals are unassigned reference tabs, not a verified circuit. Existing solid filler route, body openings and untraced ELC/feed boundaries remain separate; open tank necks do not prove coupling, vapor routing or a complete fuel circuit. The retained vapor neck may contact the independent floor reference. No fluid compatibility, sealing, safe support/drain/disconnection order, strength, torque, fitted clearance or verified tank/sender removal path. Separation is illustrative.",
  "browser_validation": {
    "nativeMeshes": 7,
    "finiteVertices": 33540,
    "allAssembliesReady": 68,
    "metricPlacementAndPicking": true,
    "isolation": true,
    "productionReloadWithoutHooks": true,
    "pageErrors": []
  }
}
