{
  "schema": "rear-drum-comparison-validation-v1",
  "geometry_checks_pass": true,
  "fitted_brake_acceptance": false,
  "groups": 32,
  "positive_valid_solids": 76,
  "held_mesh_and_native_volume_groups": [
    "rear_left_connected_integral_role_axle_end_journal_and_mount_flange",
    "rear_left_connected_dished_backplate_with_shared_mount_and_actuator_apertures",
    "rear_left_four_backplate_to_axle_screw_retainer_envelopes",
    "rear_left_connected_stepped_rear_hub_flange_and_estimated_face_groove",
    "rear_left_rear_bearing_boundary_comparison",
    "rear_left_unthreaded_handed_role_hub_nut_envelope",
    "rear_left_flat_bearing_retaining_lock_washer_tab_comparison",
    "rear_left_halfshaft_and_bored_integral_flange_without_splines",
    "rear_left_unloaded_inboard_hub_lip_seal_envelope",
    "rear_left_uncompressed_halfshaft_face_o_ring_comparison",
    "rear_left_uncompressed_halfshaft_face_gasket_comparison",
    "rear_left_separate_halfshaft_retaining_screw_envelope",
    "rear_left_two_separate_drum_retaining_screw_envelopes",
    "rear_left_four_rear_wheel_stud_head_shank_envelopes",
    "rear_left_four_separate_rear_wheel_nut_envelopes",
    "rear_right_connected_integral_role_axle_end_journal_and_mount_flange",
    "rear_right_connected_dished_backplate_with_shared_mount_and_actuator_apertures",
    "rear_right_four_backplate_to_axle_screw_retainer_envelopes",
    "rear_right_connected_stepped_rear_hub_flange_and_estimated_face_groove",
    "rear_right_rear_bearing_boundary_comparison",
    "rear_right_unthreaded_handed_role_hub_nut_envelope",
    "rear_right_flat_bearing_retaining_lock_washer_tab_comparison",
    "rear_right_halfshaft_and_bored_integral_flange_without_splines",
    "rear_right_unloaded_inboard_hub_lip_seal_envelope",
    "rear_right_uncompressed_halfshaft_face_o_ring_comparison",
    "rear_right_uncompressed_halfshaft_face_gasket_comparison",
    "rear_right_separate_halfshaft_retaining_screw_envelope",
    "rear_right_two_separate_drum_retaining_screw_envelopes",
    "rear_right_four_rear_wheel_stud_head_shank_envelopes",
    "rear_right_four_separate_rear_wheel_nut_envelopes"
  ],
  "all_reference_nodes_held": true,
  "changed": {
    "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings": {
      "before_mm3": 351972.6526348309,
      "after_mm3": 459740.7736459876,
      "native_valid_solids": 1,
      "complete_bounds_mm": [
        61.0,
        208.0,
        208.0
      ],
      "mesh_native_relative_volume_error": 0.00014126873522379846
    },
    "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings": {
      "before_mm3": 351972.65263479284,
      "after_mm3": 459740.7736459947,
      "native_valid_solids": 1,
      "complete_bounds_mm": [
        61.0,
        208.0,
        208.0
      ],
      "mesh_native_relative_volume_error": 0.00014126873523923056
    }
  },
  "boundary_and_material_witnesses": [
    {
      "side": "left",
      "center_passage_material_mm3": 0.0,
      "inner_height_cavity_material_mm3": 0.0,
      "retained_mount_face_material_mm3": 2.513274122871774,
      "held_fixing_access_axes_open": true
    },
    {
      "side": "right",
      "center_passage_material_mm3": 0.0,
      "inner_height_cavity_material_mm3": 0.0,
      "retained_mount_face_material_mm3": 2.513274122871774,
      "held_fixing_access_axes_open": true
    }
  ],
  "bounded_static_contacts": [
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_shoe_front_connected_web_rim_and_spring_eyes",
      "before_mm3": 0.0,
      "after_mm3": 485.9631302768505
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_shoe_front_nominal_contour_lining",
      "before_mm3": 0.0,
      "after_mm3": 2223.4026055249096
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_shoe_rear_connected_web_rim_and_spring_eyes",
      "before_mm3": 0.0,
      "after_mm3": 485.96313028397907
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_shoe_rear_nominal_contour_lining",
      "before_mm3": 0.0,
      "after_mm3": 2223.4026055467157
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_wheel_cylinder_hollow_barrel_neck_and_bleed_boss",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_wheel_cylinder_two_slotted_piston_envelopes",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_wheel_cylinder_two_unloaded_open_boots",
      "before_mm3": 0.0,
      "after_mm3": 0.04445326271142733
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_wheel_cylinder_unloaded_belleville_washer_comparison",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_wheel_cylinder_open_circlip_comparison",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_wheel_cylinder_hollow_bleed_screw_envelope",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_adjuster_open_bracket_and_backplate_neck",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_adjuster_unthreaded_square_drive_and_conical_wedge",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_adjuster_front_tappet_and_estimated_wedge_face",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_adjuster_rear_tappet_and_estimated_wedge_face",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_cylinder_end_unloaded_spring_with_web_eye_endpoints",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_adjuster_end_unloaded_spring_with_web_eye_endpoints",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_handbrake_secondary_transfer_lever_reference",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_handbrake_shared_scissor_rivet_reference",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_shoe_front_connected_web_rim_and_spring_eyes",
      "before_mm3": 0.0,
      "after_mm3": 485.9631302773099
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_shoe_front_nominal_contour_lining",
      "before_mm3": 0.0,
      "after_mm3": 2223.4026055255854
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_shoe_rear_connected_web_rim_and_spring_eyes",
      "before_mm3": 0.0,
      "after_mm3": 485.96313028923043
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_shoe_rear_nominal_contour_lining",
      "before_mm3": 0.0,
      "after_mm3": 2223.4026055514196
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_wheel_cylinder_hollow_barrel_neck_and_bleed_boss",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_wheel_cylinder_two_slotted_piston_envelopes",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_wheel_cylinder_two_unloaded_open_boots",
      "before_mm3": 0.0,
      "after_mm3": 0.044453289138004407
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_wheel_cylinder_unloaded_belleville_washer_comparison",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_wheel_cylinder_open_circlip_comparison",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_wheel_cylinder_hollow_bleed_screw_envelope",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_adjuster_open_bracket_and_backplate_neck",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_adjuster_unthreaded_square_drive_and_conical_wedge",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_adjuster_front_tappet_and_estimated_wedge_face",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_adjuster_rear_tappet_and_estimated_wedge_face",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_cylinder_end_unloaded_spring_with_web_eye_endpoints",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_adjuster_end_unloaded_spring_with_web_eye_endpoints",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_handbrake_secondary_transfer_lever_reference",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_handbrake_shared_scissor_rivet_reference",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "handbrake-reference",
      "neighbor": "handbrake_left_rear_brake_primary_lever_and_bored_rod_eye_reference",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "handbrake-reference",
      "neighbor": "handbrake_right_rear_brake_primary_lever_and_bored_rod_eye_reference",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "wheel-profile-reference",
      "neighbor": "rear-left-wheel__wheel_left_rim_and_pressed_center_reference",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "wheel-profile-reference",
      "neighbor": "rear-left-wheel__wheel_left_hollow_tyre_reference",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "wheel-profile-reference",
      "neighbor": "rear-right-wheel__wheel_right_rim_and_pressed_center_reference",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "wheel-profile-reference",
      "neighbor": "rear-right-wheel__wheel_right_hollow_tyre_reference",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_left_connected_integral_role_axle_end_journal_and_mount_flange",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_left_connected_dished_backplate_with_shared_mount_and_actuator_apertures",
      "before_mm3": 0.0,
      "after_mm3": 13480.574076553807
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_left_four_backplate_to_axle_screw_retainer_envelopes",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_left_connected_stepped_rear_hub_flange_and_estimated_face_groove",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_left_rear_bearing_boundary_comparison",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_left_unthreaded_handed_role_hub_nut_envelope",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_left_flat_bearing_retaining_lock_washer_tab_comparison",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_left_halfshaft_and_bored_integral_flange_without_splines",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_left_unloaded_inboard_hub_lip_seal_envelope",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_left_uncompressed_halfshaft_face_o_ring_comparison",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_left_uncompressed_halfshaft_face_gasket_comparison",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_left_separate_halfshaft_retaining_screw_envelope",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_left_two_separate_drum_retaining_screw_envelopes",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_left_four_rear_wheel_stud_head_shank_envelopes",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_right_connected_integral_role_axle_end_journal_and_mount_flange",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_right_connected_dished_backplate_with_shared_mount_and_actuator_apertures",
      "before_mm3": 0.0,
      "after_mm3": 13480.574076552846
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_right_four_backplate_to_axle_screw_retainer_envelopes",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_right_connected_stepped_rear_hub_flange_and_estimated_face_groove",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_right_rear_bearing_boundary_comparison",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_right_unthreaded_handed_role_hub_nut_envelope",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_right_flat_bearing_retaining_lock_washer_tab_comparison",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_right_halfshaft_and_bored_integral_flange_without_splines",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_right_unloaded_inboard_hub_lip_seal_envelope",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_right_uncompressed_halfshaft_face_o_ring_comparison",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_right_uncompressed_halfshaft_face_gasket_comparison",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_right_separate_halfshaft_retaining_screw_envelope",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_right_two_separate_drum_retaining_screw_envelopes",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_right_four_rear_wheel_stud_head_shank_envelopes",
      "before_mm3": 0.0,
      "after_mm3": 0.0
    }
  ],
  "positive_contacts": [
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_shoe_front_connected_web_rim_and_spring_eyes",
      "before_mm3": 0.0,
      "after_mm3": 485.9631302768505
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_shoe_front_nominal_contour_lining",
      "before_mm3": 0.0,
      "after_mm3": 2223.4026055249096
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_shoe_rear_connected_web_rim_and_spring_eyes",
      "before_mm3": 0.0,
      "after_mm3": 485.96313028397907
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_shoe_rear_nominal_contour_lining",
      "before_mm3": 0.0,
      "after_mm3": 2223.4026055467157
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_left_wheel_cylinder_two_unloaded_open_boots",
      "before_mm3": 0.0,
      "after_mm3": 0.04445326271142733
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_shoe_front_connected_web_rim_and_spring_eyes",
      "before_mm3": 0.0,
      "after_mm3": 485.9631302773099
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_shoe_front_nominal_contour_lining",
      "before_mm3": 0.0,
      "after_mm3": 2223.4026055255854
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_shoe_rear_connected_web_rim_and_spring_eyes",
      "before_mm3": 0.0,
      "after_mm3": 485.96313028923043
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_shoe_rear_nominal_contour_lining",
      "before_mm3": 0.0,
      "after_mm3": 2223.4026055514196
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "rear-brake-reference",
      "neighbor": "rear_right_wheel_cylinder_two_unloaded_open_boots",
      "before_mm3": 0.0,
      "after_mm3": 0.044453289138004407
    },
    {
      "group": "rear_left_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_left_connected_dished_backplate_with_shared_mount_and_actuator_apertures",
      "before_mm3": 0.0,
      "after_mm3": 13480.574076553807
    },
    {
      "group": "rear_right_hollow_seven_inch_drum_and_shared_fixing_access_openings",
      "source": "held-rear-hub-parts",
      "neighbor": "rear_right_connected_dished_backplate_with_shared_mount_and_actuator_apertures",
      "before_mm3": 0.0,
      "after_mm3": 13480.574076552846
    }
  ],
  "unapplied_catalog_bolt_circle_mm": 92,
  "retained_wheel_map_pcd_mm": 101.6,
  "source_sha256": {
    "rear-hub-catalog-drums-reference.json": "f1b1bb30ea9c6b67951aaa7983a9f0e6ab9c42781ab9dd95cc5c0962acbb23bc",
    "rear-hub-catalog-drums-reference.step": "3b0d776e7ca9332aef7ec41a4951f39b39f8ed849042066c482188b9c70c5aea"
  },
  "limits": "Native validity,boundary radii/complete bounds,mesh agreement,material/passages,held nodes and source records,and the listed bounded static comparisons only. Positive contacts are retained reconstruction discrepancies. Manufacturer bolt-circle disagreement remains unapplied. No exact BF1 reconstruction,fitted identity,loaded seating,strength,heat capacity,wear limit,brake adjustment or removal procedure is established.",
  "metadata_only_contact_report_link_added_with_parts_unchanged": true
}