Boss 290 Transmissions - BA - Super Pursuit If the Boss delivers power, the new custom-built gearbox unleashes it. Introducing the T56 6-speed close-ratio manual transmission. This is a seriously slick new gearbox that makes the absolute most of Boss 290 power. The ratios are spaced for maximum performance, minimum fuss. A new FPV shift alert tells you when to change for optimum upshifts (manual only). Auto fans can option up to a BTR Sequential Sports Shift. This high-performance automatic gearbox offers the best of both worlds. Its sequential shift system allows the driver to make fast, clean manual gear changes to maximize all the available power for acceleration or quick downshifts. When in full auto mode, the adaptive shift system changes characteristics to suit your individual driving style. Both transmissions are matched to a 2-piece tailshaft with shock-absorbing flex couplings, connected to a heavy-duty multi-plate limited-slip differential. Transmitting maximum power to the ground.