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