Patent ID: 7987739

Claim:
A transmission for achieving six forward speed stages and one reverse speed stage, comprising: an input shaft adapted to receive as an input a driving force from an engine; a first countershaft, a second countershaft and a reverse shaft each disposed in parallel relation to said input shaft; a first differential driving gear, a second differential driving gear and a third differential driving gear which are fixedly mounted, respectively, on said first countershaft, said second countershaft and said reverse shaft, and each of which is adapted to drive a differential ring gear on a driving axle; a plurality of speed-change driving gears each provided on said input shaft; and a plurality of speed-change driven gears each of which is provided on a corresponding one of said first countershaft and said second countershaft, and continuously meshed with a corresponding one of said speed-change driving gears, wherein: said first countershaft is arranged at a position above said input shaft; said second countershaft is arranged at a position below said input shaft; and said speed-change driven gears include a first-speed to sixth-speed driven gears, said first-speed driven gear and said second-speed driven gear being provided on said first countershaft, said third-speed to sixth-speed driven gears being provided on said second countershaft.