Moser Engineering carries high performance, heat-treated mini-spools. Mini-spools take the place of the stock-type side gears in OEM type (non-limited slip) differentials only!

No modifications required. Not recommended for high horsepower applications.

For applications where a stock or aftermarket differential does not provide enough locking power and a full spool cannot be used.

Application: Ford 8" or 9"
Ring Gear Diameter: 8" or 9'
Side Gear Spline: 28 Teeth