1952 Willys M38: Day 124 November 18, 2010

Thursday, November 18, 2010

Day 124 November 18, 2010

Has been a busy 2 weeks with the m38. Got the frame to my house for build up, Dad is doing all the tub work at his house. I started bolting parts onto the frame. Master Cylinder, Bell Crank, Engine Mounts. I rebuilt the Pedal assembly. I order a new pedal shaft, springs and washers. I pressed 2 new 1" x 1 1/8" x 1 oil light bushings into the pedal shaft support bracket, then using a adjustable reamer, i over sized the oil lights to 1.003. The pedal has no slop at all. I will get the pedals done tomorrow. The brake rod was egg shaped and had alot of movement on the pedal pin. I over sized the hole and pressed in a oil light bushing reamed to 7/16 i.d. This took all the play out of the brake pedal plunger shaft. Parts ordered this week, Bushings and hangers for springs, steering box parts, steering column, transfer case boot and ring, and the correct engine mount plate for the L-134 Engine... More updates tomorrow....

Cross Member, clutch bell crank ball installed

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HISTORY OF THE JEEP

On September 23, 1940 in response to an Army Invitation For Bids, the American Bantam Car Company of Butler, Pa. delivered a prototype vehicle to Camp Holabird for testing. The test vehicle was immediately recognized by the Army as one of the most important and innovative vehicles in the history of modern land warfare. Delivered and tested as Bantam Reconnaissance Car #1001, it was soon thereafter that it's testers dubbed it the "jeep".

Though the design and development of the first prototype jeep was primarily the work of Bantam Car Co., both Willys and Ford later supplied prototypes to the Army also. The Army tested all three designs and combined features of each design into one standardized jeep design. The initial contract for these standardized jeeps, model MB, was awarded to Willys in October, 1941. With the attack on Pearl Harbor shortly thereafter and America's entry into WWII, the Army felt that a second producer of jeeps would be needed. Ford Motor Company was contracted to build standardized jeeps based on the Willys MB design. Ford's designation for their standardized jeeps was model GPW.

A common misconception is that the letters "GPW" stood for General Purpose - Willys, but this is incorrect. The letters "GPW" are from Ford's own vehicle model codes where "G" indicated Government contract, "P" was Ford's code for an 80" wheelbase Reconnaissance Car 4X4, and "W" meant Willys design motor.

Another common misconception is that the name "jeep" was derived from a slurring of the letters "GP", but the word "jeep" was in common usage as early as 1938 - two years before the first jeep appeared. Exactly how the little 4x4 Reconnaissance Car ended up with the name "jeep" has never really been determined.

Willys and Ford went on to produce approximately 650,000 standardized jeeps between November 1941 and August 1945. Ford stopped producing jeeps with the end of WWII, but Willys adoped the jeep name and developed many successful civilian versions of the trusty wartime jeep.

Its simple, robust design gave the WWII jeep a legendary reliability in the field. The jeep served well beyond it's intended purpose acting as not only a Reconnaissance Car, but as weapons platform, ambulance, troop transport, equipment hauler, tractor, railroad locomotive (when fitted with special wheels) and more. The flat hood served equally well as a dinner table, operating table, map table or altar in the field. It was beloved by the troops and remains one of the most recognizable vehicles in the world.

Sources:
T. Norton, R. Bernier, & W. Spears, "Two Intrepid MB/GPW Restorers Go in Search of the Oldest Surviving Jeep." Army Motors 100, (2002): 8-18

Lawrence Nabholtz. The Military Jeep. Atlanta, Texas: B&M Printing, 1996

Ray Cowdery. All-American Wonder, Vol 1,2. Minnesota: USM Publishing, 1996

J. Gilmore, MB GPW Technical Knowledge Base (2002). Available at http://www.g503.com/forums/viewforum.php?f=4 (11 January 2003)