The smooth, sleek and simple 1957 Chevy Tri-Five straight floor shift column by ididit allows a little extra room in the drivers seat for ultimate comfort. Works with your original manual gearbox, aftermarket power box or new rack and pinion systems. Columns come standard with self-canceling turn signals, 4-way flashers, retro knobs and lever, 3 7/8" wiring plug, and a 1" DD lower shaft.