This Allstar Performance mini spool is a 28-spline steel mini spool finished in black powder coat, built for Ford 9in differential housings. It replaces the spider gears inside the stock carrier, locking both axles together for full power lockup while retaining the factory ring gear and carrier. The 28-spline count and black powder coat finish distinguish it from the 31-spline mini spool ALL68122.
Compatibility: Fits Ford 9in housings using the stock carrier and requires matching 28-spline axles. This is a mini spool, distinct from the 31-spline mini spool ALL68122 and from the GM 10-Bolt mini spools in this lineup.
FAQ
What spline count is this mini spool?
28 spline.
What finish does this spool have?
Black powder coat.
What housing is this designed for?
Ford 9in differential housings using the stock carrier.
How does this differ from ALL68122?
ALL68122 is a 31-spline Ford 9in mini spool without the black powder coat callout; this is the 28-spline black powder coated version.
Does this work in GM 10-Bolt housings?
No, this mini spool is built for Ford 9in housings, not GM 10-Bolt housings.

