{
  "scope": "Current tank against rear support and exhaust sources in their retained common drawing frame; not a fitted-car clearance audit.",
  "units": "mm and mm^3",
  "owner_measurements_applied": false,
  "source_sha256": {
    "fuel-tank-reference.json": "529735008e47246532206e0c63859f74fae7c1a096834e39a14b6570e2db3eb3",
    "fuel-tank-reference.step": "39519bafa16ec0800f2cf9d4535b29019a09934d00baa8c2933e44594ad861ee",
    "rear-body-mount-reference.json": "edf2760a32847e7adcd14a6759a5d001f6167259abb6183f93717111ed71404e",
    "rear-body-mount-reference.step": "97e82ac65f4b2a63b2cd871e945d84122232d91761b92831710e359513eec456",
    "rear-frame-reference.json": "c2f4813d1a2f5858bb96287f36a80250ac475053f23e4fba7ef3f4ba317c8954",
    "rear-frame-reference.step": "7faac9429b261976b09612dc11f5802a8b297c4edfe6b09e5f2c6dfbcee5c980",
    "underfloor-exhaust-reference.json": "1e84cc8e7d0997a33d31ffb145f592d252312a1dea857593327ed7aaf378d3d4",
    "underfloor-exhaust-reference.step": "cbd4bd2439e2f7cfc094aabe457d5f49d8d1596610507eba070481549b4ad082"
  },
  "tank_neighbor_overlap_mm3": {
    "rear_left_thin_inner_wheelhouse_web_and_roof_reference": 0.0,
    "rear_left_formed_wheelhouse_to_floor_reinforcement_comparison": 0.0,
    "rear_left_local_shackle_floor_doubler_and_open_returns_reference": 7981.52921,
    "rear_left_three_fixing_shackle_bracket_cheeks_and_open_sleeve_comparison": 0,
    "rear_left_three_body_fixing_envelopes": 0,
    "rear_left_four_flanged_shackle_bush_halves_comparison": 0.0,
    "rear_left_shackle_plate_with_two_smooth_pins_comparison": 0.0,
    "rear_left_separate_bored_shackle_closing_plate_comparison": 0.0,
    "rear_left_shackle_washer_and_smooth_nut_envelopes": 0.0,
    "rear_right_thin_inner_wheelhouse_web_and_roof_reference": 0.0,
    "rear_right_formed_wheelhouse_to_floor_reinforcement_comparison": 0.0,
    "rear_right_local_shackle_floor_doubler_and_open_returns_reference": 7981.529219,
    "rear_right_three_fixing_shackle_bracket_cheeks_and_open_sleeve_comparison": 0,
    "rear_right_three_body_fixing_envelopes": 0,
    "rear_right_four_flanged_shackle_bush_halves_comparison": 0.0,
    "rear_right_shackle_plate_with_two_smooth_pins_comparison": 0.0,
    "rear_right_separate_bored_shackle_closing_plate_comparison": 0.0,
    "rear_right_shackle_washer_and_smooth_nut_envelopes": 0.0,
    "rear_left_formed_damper_and_upper_strap_body_panel_comparison": 1196.419119,
    "rear_left_damper_two_bored_mount_ear_envelopes": 0,
    "rear_left_two_damper_body_fixing_envelopes": 0,
    "rear_left_upper_strap_pin_and_smooth_retainer_envelopes": 0.0,
    "rear_left_rubber_bumper_open_floor_beam_and_bored_endplate_comparison": 0,
    "rear_right_formed_damper_and_upper_strap_body_panel_comparison": 1196.419119,
    "rear_right_damper_two_bored_mount_ear_envelopes": 0,
    "rear_right_two_damper_body_fixing_envelopes": 0,
    "rear_right_upper_strap_pin_and_smooth_retainer_envelopes": 0.0,
    "rear_right_rubber_bumper_open_floor_beam_and_bored_endplate_comparison": 0,
    "underfloor_cross_car_main_pipe_reference": 0.0,
    "underfloor_longitudinal_resonator_shell_comparison": 0.0,
    "underfloor_resonator_to_cross_box_pipe_reference": 0.0,
    "underfloor_transverse_silencer_shell_comparison": 0.0,
    "underfloor_right_tail_pipe_reference": 0.0,
    "underfloor_intermediate_clip_isolator_comparison": 0.0,
    "underfloor_left_rear_clip_isolator_comparison": 0.0,
    "underfloor_right_rear_clip_isolator_comparison": 0.0,
    "underfloor_body_support_brackets_reference": 0
  },
  "section_z_body_mm": -1608.6666666666667,
  "floor_top_body_y_mm": 414.8666666666667,
  "floor_underside_body_y_mm": 413.6666666666667,
  "limits": "All source mounting datums remain estimated and unregistered to the actual car. Zero solid intersection does not establish clearance, removal access, operating travel or safe support. Section is one station and excludes other components. Floor planes use existing viewer sheet construction, not a new native floor. Do not change tank manufacturer bounds or cut support panels to erase these conflicts without evidence.",
  "browser_validation": {
    "section_image_loaded": true,
    "local_links_http_200": 5,
    "mobile_viewport_width_px": 390,
    "horizontal_overflow": false,
    "page_errors": []
  },
  "subsequent_sender_well_revision": {
    "baseline_revision": "9758436d",
    "source_report": "Historical snapshot retained; original hashes/results apply to its raised-seat tank source.",
    "current_validation": "/cars/1975-mg-midget/cad/fuel-tank-sender-well-validation.json",
    "current_study": "/cars/1975-mg-midget/fuel-tank-study/#sender-well",
    "floor_tank_contact_mm3": 138.129544,
    "floor_sender_contact_mm3": 0.0,
    "limits": "Recess and sender depth remain unmeasured reference construction; mounting registration and removal paths unverified."
  }
}