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41-45 GPW General Specs

GPW Field Guide, Kaiser Willys Catalog - Request Catalog Copy or Download

Technical Specifications - Willys 41-45 GPW

GPW Front View

Length: 132 1/4” (335,91 cm.) 
Width: 62“ (157,48 cm.) 
Height: (Top Up): 69 3/4” (177,16 cm.) 
Height: (Top Down): 52" (132,08 cm.)
Tire Size: 6.00-16, 30 psi

Electrical: 6 Volt
Transmission: 3 speed T-84 
Transfer Case: 2 Speed Dana 18
Front Axle: Dana 25
Rear Axle: Dana 27 
Wheelbase: 80” (203 cm.)
Other: 2-Piece Windshield, No Tailgate
Engine: 4-134 L Head Motor (463) (All Years)

Serial Number Location(s):
Passengers side of dash (stamped on military data plate). Stamped on upper left chassis rail between the gusset and bumper.
Engine Number Location:
Stamped on a outcropping (boss) on the right front of the engine block behind the water pump.

Vehicle Identification - Willys 41-45 GPW

Main Identifying Characteristics:

Flat front fenders, 9 slot stamped grille, rectangular 2-piece (split) outward-pivoting windshield, split combat wheel, blackout lights, machine gun mounting plate, front axle mounted pivot arm, spindle arms are separate from the spindle housing, tilting headlights, fuel filter under drivers side seat, no tailgate, hand-operated windshield wipers, pioneer tool (axe & shovel) indentations on the drivers side.

MB, GPW Main Identifying Characteristics

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Model Differences: Willys MB

- Tubular arched front crossmember
- Rear shock brackets are "open" channel type
- Solid tool box lid
- Early models had "Willys" emblem

 Model Differences: Willys MB

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Model Differences: Ford GPW

- U-channel front crossmember
- Rear shock brackets are two pieces welded together ("closed" type)
- Tool box lid is embossed
- Early models stamped with "Ford" emblem

Model Differences: Ford GPW