AMC 20 Traction Devices

AMC 20 lockers, limited slips, and spools. These traction upgrades transform the open differential in the Model 20 rear axle (standard in 1976-1986 Jeep CJ5, CJ7, CJ8, and other AMC/Jeep vehicles) by delivering power to both wheels for superior grip on loose surfaces, steep climbs, or uneven terrain—automatic options like the Powertrax Lock-Right provide on-demand locking with quiet street manners, helical limited slips such as Eaton Detroit Truetrac offer smooth torque bias without harsh engagement, and full spools or Spartan-style drop-ins deliver maximum traction for dedicated off-road use. Pairing a traction device with heavy-duty one-piece shafts, bearings, and ring & pinion gears ensures the axle handles increased stress reliably. Browse a wide variety of AMC 20 traction devices to select the right locker, limited slip, or spool for your driving needs, whether daily driven or trail-focused.