The D/W series is a line of pickup trucks that was sold by Dodge from October 1960 to September 30, 1993. The same basic design was retained until the October 1993 introduction of a completely redesigned Ram. The D/W series shared its AD platform with the Dodge Ramcharger/Plymouth Trail Duster twins. 4x2 models were designated D, while 4x4 models were designated W. First generation (1961–65) The Chrysler A engine of was the smallest V8 option; and all of Chrysler's larger engines, with the notable exception of the Chrysler Hemi engine, were available as factory options. The original design was built until the spring of 1965, when the facelifted, single-headlamp version arrived. For 1963, Dodge introduced a four-door crew-cab version of the D series, becoming the first "Big Three" American manufacturer to market a factory-produced truck with two rows of seating (following the 1961 introduction of the International Travelette). Besides straight-sided beds (called Sweptline), the D series also offered step-sided narrow beds (called Utiline) in (D-100 only), (D-100 and 200), and (D-300 only) lengths. The first generation of the D series was manufactured in Warren, Michigan. They were given the Dodge and Fargo brands. The trucks were produced by the Dodge Division of the Chrysler Corporation. Custom Sports Special and high-performance package 1964 saw the introduction of the sporty Custom Sports Special. The Custom Sports Special included bucket seats, console, carpeting and racing stripes. The optional high-performance package could be ordered with a CSS truck or by itself on a base model truck complete with Chrysler's big wedge-head V8 for 1964 and V8 for 1965. The 426 cubic inch engine produced 365 hp (272 kW) and 470 lb·ft (637 N·m)—in line with the muscle-car revolution that was then sweeping Detroit. The high-performance package also included the LoadFlite automatic transmission, a 6000 rpm-rated Sun tachometer with heavy-duty gauges, power steering, dual exhaust and rear axle torque rods (traction bars) sourced from 1961 Imperials. Custom Sports Special trucks were produced from 1964 to 1967. The high-performance package required customized fabrication including tailor-made traction bar brackets, alterations to the frame cross members and an enlarged firewall to make room for the exhaust manifold. The High Performance Package was only offered from 1964 to early 1966. Second generation (1965–71) 1965–67 The D series was mildly redesigned in spring of 1965, hence there are both two-headlight and four-headlight models titled as 1965s. Updates for mid-'65 included