The Evolution of Jeep

WranglerA Timeline of the History of Jeep Wranglers

By: Daniel Eichenauer

WWII Demand Failed Success of

Austin 7 in US Army needed new

vehicle Army needs

4x4 capabilities 600 lb. load capacity 3 passenger

minimum seating Gross weight of

<1200 lbs.1932 Austin 7

Willy Introduced in 1941

for military use Specifications

2.2 liter 4 cylinder engine

60 Hp. at 3,600 rpm.

High and Low range 4WD gearbox

Raw functionality

1941 Willy

Willy’s Reputation Functional Tough as Nails War reputation

spurred popularity with non-military customers Farmers Ranchers Utility Companies Civilians Classic Jeep Catalog Cover

Introduction of Jeep Original name was “Truck,quarter ton, four by

four, command reconnaissance” Name too lengthy Shortened to “General Purpose” Shorthanded to “GP” Slurred to Jeep Name stuck and is still around today

CJ (Jeep Universal) Introduced in 1965

for civilian use Americas most

popular 4x4 Not competitive

with mainstream car companies Only produced

110,000 units 1965 Jeep Universal

CJ Continued Specifications

Four Cylinder Engine 75 Hp. at 4,000 rpm. 3-4 speed Manual

Transmission

Introduction of Customizability Heavy-duty springs Removable doors Fold down windshield Power locking differential Plow/mower/trencher/

welder/posthole digger attachments

Hard/Soft tops

Illustration of available tops for the CJ

YJ Wrangler Produced from 1987-1995 New Features

Square headlights 4.2 Liter 6 Cylinder Engine 4.0 Liter Inline 6 Engine

introduced in 1991 Sport model

ABS brakes introduced in 1993

Introduction of 3 speed 2.5 Liter engine in 1994

1991 YJ

Sahara Edition Introduced in 1988 Features

All Standard features Cloth seats with

storage pockets Fog lamps Special fender trim Alloy Wheels Special Colors

1988 CJ Sahara

TJ Wrangler Produced from 1997-2006 New Features

Return of the Circular headlights

Engines 4.0 Liter inline 6 2.5 Liter 4 cylinder

Rubicon Option Upgraded Suspension Locking Differentials Upgraded Axles

2004 TJ Wrangler

Wrangler Unlimited Introduced in 2004 Features

10 inch longer wheelbase

Double the towing capacity of standard Wrangler due to wheelbase

2007 to present models feature 4 doors

Side by side comparison of TJ Wrangler and TJ Wrangler

Unlimited

JK Wrangler Produced from 2007-

Present New Features

3.8 Liter V6 Engine Better gas mileage

than the previous 4.0 Liter Inline 6

Stability Control Anti-roll system Seat mounted side

airbags

JK Wrangler

References https://sites.google.com/site/jeepchanges/ http://www.allpar.com/model/jeep/wrangler.html http://www.classiccarcatalogue.com/A/austin%201932%207

army.jpg

http://img2.imagesbn.com/images/101840000/101849495.jpg

http://www.4-the-love-of-jeeps.com/images/1991JeepWrangler.jpg

http://freepages.misc.rootsweb.ancestry.com/~slowbell/jeep_front_17_jul_00.jpg

http://www.allpar.com/SUVs/jeep/wrangler-2011.html