Full Name: Datong Gear DC6J75TT 6-Speed Manual Transmission (Overdrive Version)

Speed: 6 forward, 1 reverse, manual shift

Core Parameters: Max input torque 750N·m (3000rpm); main box center distance 148mm; 2–6 gears with synchronizers, 1/R gear with sliding sleeve; weight 188kg; oil capacity 8L; gear ratios – 1st 6.540, 2nd 3.780, 3rd 2.170, 4th 1.440, 5th 1.000, 6th 0.810, reverse 6.540

Fit For: 8–12T medium-heavy trucks, urban logistics vehicles, refrigerated transport vehicles, engineering vehicles; mainly for 160–190hp commercial vehicles

Vehicle Brand Fitment: Foton (Aumark S5, Ollin 5-Series), SINOTRUK HOWO, FAW Jiefang, Dongfeng, JAC, Shacman

Key Features: Overdrive 6th gear for fuel efficiency at high speed; full synchronizers for smooth shifting; multiple control modes (single/dual lever, direct control); high torque reserve for heavy-load reliability; low noise and long service life