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Fitment Pack v1.8

Early Bronco 4x4 Fitment Pack

Motor mount, adapter plate, battery box layout, cable routing guides, and trim pieces for the 1966 to 1977 Ford Bronco.

Engineer reviewed 2026-07-02Field proven: 23 builds
$1,095Included with Pro and Fleet
MOTORADAPTER PLATE / 7075-T6ISOLATOR 70ABATTERY BOX FRAME / 4130

Structural parts

Load bearing. Machine or metal print only, from the specified material. Never print in plastic.

  • Transfer case adapter plate
    7075-T6 aluminum
    Structural: machine or metal printSTEP / DXF / PDF drawing
  • Motor cradle and mounts
    4130 steel
    Structural: machine or metal printSTEP / PDF drawing
  • Underfloor battery enclosure
    5052 aluminum, 4 mm
    Structural: machine or metal printSTEP / DXF
  • Trail skid plate
    3/16 in A36 steel
    Structural: machine or metal printDXF

Non-structural parts

Clips, bezels, and harness guides. Safe to print in-house.

  • Vent snorkel housing
    ASA
    Non-structural: print in-houseSTL
  • Dash switch panel
    ASA
    Non-structural: print in-houseSTL / 3MF

Bill of materials

ItemQtySpec
Spline coupler, 32 tooth1Hardened 4140
M10 x 1.5 bolt, class 10.912Zinc flake
Enclosure gasket, EPDM2Closed cell

Torque specifications

FastenerSpec
Adapter to transfer case (3/8-16)47 N·m
Motor cradle to frame (M12)95 N·m
Skid plate (M10)55 N·m

Assembly checklist

  1. 01Isolate and tag every HV conductor before work begins (lockout and tagout).
  2. 02Verify chassis ground continuity below 0.1 ohm at each mount point.
  3. 03Torque structural fasteners to spec and apply witness marks.
  4. 04Confirm battery box clearances of 25 mm minimum to moving parts and exhaust-free zones.
  5. 05Perform insulation resistance test at 500 V DC before first energization.
  6. 06Complete HV commissioning log and road test sign-off.