don't think the engine really matters as its all about kerb weights etc but this may be of some use:
Jeep CJ-3B specifications 
Length 130 inches   Wheelbase 80 inches 
Tread 49 inches   Width 69 inches 
Height 68 inches   Brake area 118 sq. in. 
Clutch 72 sq inch single-dry plate   Cooling 12 quarts with heater 
Battery 50 amp-hour 12V (6V opt.)   Generator 35 amps 
Tires 6.00 x 16; other sizes opt.   Transfer case 1.00:1; 2.46:1 
Wheels 5 disc, 4.50 x 16, 5-stud   Shocks Hydraulic 
Gas 10.5 gallon tank   Axle ratio 5.38:1 
Front axle 2,000 lb capacity   Rear axle 2,500 lb capacity 
  Hypoid full-floating     Semi-floating 
Turning radius 17 feet, 6 inches   Cargo bed 36” x 38” 
Towing Over 2,240 lb   Steering ratio 17.9:1 (cam and lever) 
Front springs 10-leaf, 260 lb-in rate   Rear springs 9-leaf, 190 lb/in rate 
  650 lb capacity     800 lb capacity 
  36.25 x 1.75 inches     42 x 1.75 inches