marketed alongside its predecessor, pared down to the F-250HD and F-350; for 1999, these were replaced by the Super Duty trucks. In the most extensive redesign of the F-Series in 17 years, the chassis received fully independent front suspension, ending the use of Twin I-Beam front axles. Sharing only the transmissions with its predecessor, the 1997 F-150 received a range of engines new to the F-Series, including a 4.2 L V6 and 4.6 L V8; a 5.4 L V8 was added during 1997. Introduced in the full-sized Crown Victoria/Grand Marquis/Town Car sedans, the Modular/Triton V8 was the first overhead-camshaft engine to be installed in a full-sized pickup truck. Distinguished by its rounded exterior, the tenth generation was again offered in standard- and extended-cab (SuperCab) configurations. To improve rear-seat access, a rear-hinged third door (curbside) was introduced for the SuperCab; following its popularity, the SuperCab received a fourth door for 1999. For 2001, the F-150 became the first "-ton" truck offered as a crew cab with full-sized doors; produced with a slightly shortened bed, the F-150 SuperCrew shared the length of a standard-bed SuperCab. The SVT Lightning made its return for 1999, powered by a supercharged version of the 5.4 L V8; over 28,000 were produced from 1999 to 2004. For 2002, Lincoln-Mercury introduced the Lincoln Blackwood, the first Lincoln pickup. Sharing the front bodywork of the Lincoln Navigator SUV and the same cab and chassis as the F-150 SuperCrew, the Blackwood was designed with a model-exclusive bed and was sold only in black. Due to very poor sales, the model line was discontinued after 2002. For 1999, Ford redesigned the F-250 and F-350, introducing them as the first generation of the Ford F-Series Super Duty model line. While remaining part of the F-Series, the Super Duty trucks were designed with a different chassis, powertrain, and body design, as they are developed for heavier-duty work use. For 2000, the Super Duty line was expanded to include the medium-duty truck (F-650/F-750) series, designed in a joint venture with Navistar International. Eleventh generation (2004–2008) For the 2004 model year, the F-150 was redesigned on an all-new platform, which has a fully boxed-in frame and introduced rear shocks to mount outside of the frame for decreased wheel hop and improved ride quality. This new body style kept the fully independent front suspension introduced in the last generation, but added vacuum-driven front wheel hubs for