Good info here to help fuel the always-present "wheelbase" argument.
Model*
Wheelbase in inches*
Wrangler JK (2007-2011) 2door/4door
95.4/116
Wrangler TJ (1997-2006)
93.4
Wrangler YJ (1987-1995)
93.4
Grand Cherokee (WJ/ZJ) (1993-2011)
105.9
Cherokee (XJ) (1984-2001)
101.4
Comanche MJ (1986-1992) short bed/long bed)
113/119.9
Commander (2006-2010)
109.5
Compass (2007-2011)
103.7
Liberty (2002-2011) KJ/KK
104.2/106.1
CJ-8 (1981-1986)
103.5
CJ-7 (1976-1986)
93.5
CJ-6 (1972-1981)
103.5
CJ-6 (1955-1971)
101
CJ-5 (1972-1986)
83.5
CJ-5 (1955-1971)
81
GPW, MB, CJ-2A, CJ-3A, CJ-3B, M-38
80
M-715
126
J10, J20 long bed/short bed
131/119
Wagoneer (1971-1991)
109
Wagoneer (1963-1970)
110
Jeepster (1972-1973)
104
Jeepster (1967-1971)
101
J-2000
120
J-3000
126
J-3800
132
Willys Wagon
104
Willys Truck
118
http://www.jeep4x4center.com/knowledge-base/jeep-vehicle-wheelbase-chart.htm