Engine    
170 cu in (2.8 L) Slant-6 I6
225 cu in (3.7 L) Slant-6 I6
318 cu in (5.2 L) LA V8
360 cu in (5.9 L) LA V8, 180 hp (134 kW) net
400 cu in (6.6 L) B V8, 200 hp (149 kW) net
440 cu in (7.2 L) RB V8, 255 hp (175 kW) net
243 cu in (3,988 cc) 6DR5 I6 Diesel

Transmission    
3/4-speed manual
3-speed column-mounted automatic

Dimensions
Wheelbase    115 in (2,921 mm) (regular cab 6.5 ft (2.0 m) bed)
131 in (3,327 mm) (regular cab 8 ft (2.4 m) bed)
133 in (3,378 mm) (Club Cab 6.5 ft (2.0 m) bed)
135 in (3,429 mm) (regular cab 9 ft (2.7 m) Utiline bed, 1972 only)
149 in (3,785 mm) (crew cab 6.5 ft (2.0 m) bed and Club Cab 8 ft (2.4 m) bed)
165 in (4,191 mm) (crew cab 9 ft (2.7 m) bed)

Dodge D Series on Wikipedia

MORE SPECS WILL BE HERE SOON