15-passenger seating. Conversely, the Ram van was the final full-size short-wheelbase van, as the 109-inch wheelbase B1500 was offered through 2003. First generation (1971-1978) From 1971 to 1978, Dodge produced two models of the B-series van: the Dodge Tradesman cargo van and the Dodge Sportsman passenger van. In line with the D-series pickup truck (which underwent a final redesign for 1972), the van was marketed three payload series: ½-ton "100", ¾-ton "200", and 1-ton "300". Only five inches longer than its A100/A108 predecessor, moving the front axle forward allowed for a substantial increase in interior space. Dodge introduced the Tradesman and Sportsman in two wheelbases: 109 inches and 127 inches. Initially introduced in two body lengths, an extended-length "Maxivan/Maxiwagon" variant was introduced during 1971. Consisting of an 18-inch rear body extension, the Sportsman Maxiwagon could be fitted with four rows of rear seats, allowing for up to 15 passengers. While the Tradesman was offered strictly as a cargo van, the Sportsman was offered in three distinct trims: Sportsman, Custom Sportsman, and Royal Sportsman, with the latter rivaling the Dodge Royal Monaco station wagon in equipment and trim. Along with its highly sloped hoodline and short front fenders, this generation of the B-series van is distinguished by several exterior design features. On passenger vans with the 127-inch wheelbase, the front passenger door and the rear side doors are separated by a filler panel (with a small window), with all body lengths (including the Maxiwagon) sharing the same side glass. The side windows are smaller in size, sharing a beltline with the front door glass. Sharing its powertrain with the Dodge D-series pickup truck (redesigned for 1972), the van line was initially released with a 198 cubic-inch Slant-6 along with a 225 cubic-inch Slant-6 and a 318 cubic-inch V8. For 1972, the 198 was dropped with a 360 V8 becoming a second optional V8. For 1976, B200 and B300 vans gained the option of large-block 400 and 440 cubic-inch V8s. A three-speed manual was standard, with the options of a 4-speed manual (added in 1976) and a 3-speed automatic. During its production, the first-generation vans saw gradual changes added each year. For 1972, front disc brakes were added along with full chrome door handles (replacing black push buttons). For 1973, electronic ignition replaced the previous points-type system and power brakes became standard. For 1974, a redesigned plastic grille was added (moving the