The Spicer 217414 Axle Seal Installation Tool Kit is a professional-grade oil-seal driver designed for correct installation of axle output-shaft and differential seals on Dana/Spicer D/R344, 404, 405, 454, DSP40, DST40, DSH40/44 and related heavy-duty drive axles. This kit includes precision-machined driver components engineered to seat micro-lip and standard axle seals evenly and to proper depth, minimizing risk of misalignment or seal failure. Compatible with a wide range of Spicer/Eaton part-number cross references (including ETN 217414, 2719-217414, SP 217414, among others), it is suitable for commercial trucks, trailers, heavy-duty vehicles, fleet maintenance, and axle rebuild applications. Weighing about 1.15 lb and compact enough for shop or field use, the 217414 tool helps ensure dependable seal installation and drivetrain reliability. Always confirm axle model and seal specification before installation.