Your probably referring to the American 3/4 ton M101, unlike SWAMPMANS Canadian 1/4 ton M101.
Heres the dimensions. Most consider it a bit big and heavy for a midsized SUV.
DIMENSIONS
Overall:
Length .................................................. ............................147 in. (373.38 cm)
Width .................................................. ............................73.5 In. (186.69 cm)
Height of Chassis .................................................. .................35 in. (88.9 cm)
Height of Cargo Trailer (M101A2 and M101A3):
Empty............................................. .....................................83 in. (210.82 cm)
Loaded............................................ ....................................79 In. (200.66 cm)
Cargo Body (Old Style):
Length............................................ ...................................76 in. (193.04 cm)
Width .................................................. ...........................65.5 in. (166.37 cm)
Height .................................................. ...............................18 in. (45.72 cm)
Tread .................................................. ..............................72 in. (182.88 cm)
Cargo Body (New Style) (M101A2 and M101A3):
Length............................................ ......................................100 in. (254 cm)
Width .................................................. ...........................73.5 in. (186.69 cm)
Height .................................................. ..........................19.84 in. (50.39 cm)
TOWING INFORMATION
Towing Attachment .................................................. ...............Drawbar Coupler
Towing Vehicle .................................................. ...............CUCV Series, HMMWV
Series, 2-1/2 Ton series,
5 Ton series
WEIGHTS
Payload (Maximum):
Cross-country .................................................. ...................1500 lb (681 kg)
Highway .................................................. .......................2250 lb (1021.5 kg)
(Personal note. I've towed 3,000 lb many times with no problem)
Empty:
Wheels .................................................. .........................1225 lb (556.15 kg)
Front Support Leg............................................... ................115 lb (52.21 kg)
Total 1340 lb (608.36 kg)
With Payload:
Wheels
Cross Country........................................... ....................2640 lb (1198.56 kg)
Highway .................................................. .....................3360 lb (1525.44 kg)
Front Support Leg
Cross-country........................................... ............................200 lb (90.8 kg)
Highway .................................................. .........................230 lb (104.42 kg)
Total
Cross-country........................................... .....................2840 lb (1289.36 kg)
Highway .................................................. ......................3590 lb (1629.86 kg)