Dana 25 Traction Devices

Dana 25 lockers, limited slips, and spools. These traction upgrades convert the open differential in the Dana 25 front axle—standard in early Jeeps like the CJ-2A, CJ-3A, CJ-3B, CJ-5, CJ-6, Willys Wagon, Willys Pickup, and military models (MB, M38) from the 1940s to mid-1960s—by directing power to both wheels for improved grip on dirt, gravel, mud, steep inclines, or uneven off-road terrain. Automatic lockers such as the Powertrax Lock-Right engage on-demand for reliable traction without tools or switches, while offering quiet operation suitable for mixed street and trail use. Helical limited slips provide progressive torque distribution and smooth handling, and full spools offer maximum lockup for dedicated off-road or competition setups. Pairing a traction device with stronger axle shafts, bearings, or ring and pinion gears helps the lightweight Dana 25 handle added stress reliably. Browse our selection of Dana 25 traction devices to find the ideal locker, limited slip, or spool for your classic Jeep or Willys restoration, daily driver, or serious off-road project.