Dana Spicer 21588X Inner Spindle Nut Assembly

Dana Spicer 21588X Inner Spindle Nut Assembly (with Pin)

This is an inner spindle nut with safety pin used to secure the inner portion of the spindle/hub assembly on certain front axle configurations.

• Thread size: 1.625-16 (i.e., 1 ⅝″ major diameter, 16 threads per inch)
• Flange outer diameter: ~55.36 mm (~2.18″)
• Thickness: ~9.59 mm (~0.38″) as listed in one spec sheet.
• Material: Hardened steel, OEM spec (Spicer quality) for durability in axle service.
• Comes with pin: The nut includes a hole/pin orientation for the safety-pin locking to prevent rotation under service.