Description
A mini spool delivers the lock-up characteristics your GM 12-bolt needs for consistent traction off the line, eliminating axle speed differentiation that costs you time and grip. Whether you’re road racing, autocrossing, or drag racing, this steel spool provides the mechanical advantage of a welded differential without permanent modification to your housing. Direct bolt-in fitment means you’ll be testing setup changes in hours, not days.
- GM 12-Bolt application
- 8.875″ diameter
- 30-spline internals
- Steel construction
- Bolt-on installation
- Sold individually






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