Self-locking differential pinion nut for Dana 44/60/70 axle – Jeep Wrangler JK/JKU. This nut is an original Spicer/Dana component used in differentials (pinion nut) for various axle assemblies such as Dana 44, 60, 70, etc.It is a self-locking differential pinion nut, designed to secure the pinion in place within the ring-and-pinion assembly, which is critical for proper drivetrain operation.Specifications: Thread: 7/8"-14 UNF (Ø 22.23 mm – pitch 1.814 mm) Hex size: 1.292" (32.8 mm) Flange diameter: 1.280" (32.5 mm) Nut thickness: 0.625" (15.9 mm) Material: Steel Finish: Zinc-plated Type: Self-locking nut Application: Differential pinion (Dana 44 / 60 / 70, etc.)