SKU: MOTMS10C-28
UPC: 698231606117
MPN: MS10C-28
The Mini Spool GM 8.5in 28 Spline from Motive Gear is a purpose-built performance differential component designed for serious drag racers, street performers, and dedicated track enthusiasts running GM 10-bolt rear axles from 1970 onwards. This spool locks the differential completely, eliminating wheel spin and delivering maximum traction during hard acceleration—critical for vehicles prioritizing launch performance over street driving comfort.
Built to withstand the demands of competition and high-horsepower applications, this mini spool replaces the factory differential carrier to provide the aggressive power delivery that modified vehicles demand. The 28-spline design matches OEM GM 10-bolt axle specifications, ensuring direct bolt-in compatibility without modification to existing driveshaft or axle hardware. By eliminating the spider gears and side gears of a traditional open or limited-slip differential, the spool creates a rigid power path that forces both wheels to rotate at identical speeds—essential for maximizing tire bite during acceleration and cornering on drag strips or road course acceleration zones.
The compact mini spool design preserves ground clearance while delivering full locking action, and the Motive Gear manufacturing standard ensures hardened steel construction rated for forced-induction and high-RPM power levels typical in modified LS, LT, or big-block applications. This component is ideal for vehicles no longer prioritizing street manners in favor of pure acceleration, making it a perfect choice for serious racers.
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