Get Tough with Longfield Axles and Birfields

Trail Gear Longfield Birfield constant-velocity joints provide additional strength in off-road conditions by delivering a super smooth and consistent torque transfer rate that links the inner and outer axle shaft. Each machine-splined Birfield offers superior durability and extended service life with a heat-treated 4340 chromoly steel construction, along with a gun-drilled center for proper lubrication. Create a bullet-proof driveline capable of withstanding any adventure you encounter, by combining these super joints with Longfield 4340 chromoly axle shafts.