What can you say about an axle that has been used by the military for years, is readily available and can stand up to just about any abuse you can dish out? Sure, it's heavy and only comes in one gear ratio, but for the serious 'wheeler who runs big tires on brutal terrain, it's the Holy Grail.
Application: Front and rear.
Type: Full-floater.
Spline count: 16.
Factory ratio: 6.72.
Maximum tire size for stock axles: 40-inch and above (limited by gear ratio).
Strong point: There are many, but for builders, the high entry position of the driveshaft is a major plus when engineering the drivetrain and it offers improved ground clearance.
Weak point: Only one ratio available.
Junkyard jewel: Find a later model that is equipped with Spicer U-joints.
Building secrets: Add a Detroit Locker.
Aftermarket alternatives: Boyce Equipment, Chuck's Trucks.