Description
A full spool eliminates wheel spin by locking both rear wheels together, delivering maximum traction off the line and through corners—essential for drag racing, road course competition, and serious street performance. The 31-spline design provides superior load capacity compared to 28-spline alternatives, while the lightweight construction minimizes rotational mass without sacrificing durability. Purpose-built for Ford 9-inch housings, this steel spool is a bolt-on upgrade that transforms your differential into an uncompromising power-delivery system.
- Ford 9-inch housing
- 31-spline design
- Full spool (locked)
- Steel construction
- Lightweight profile
- Bolt-on installation
- Sold individually






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