Engine Kits

GM Full Spool fits 8.78" 12 Bolt, 30 Spline - Steel (Car 12 bolt only)
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GM Full Spool fits 8.78" 12 Bolt, 30 Spline - Steel (Car 12 bolt only)



Part #: FS12-30
List Price: $287.30
Our Price: $209.73
You Save: $77.57

Availability: In Stock



GM Full Spool fits 8.78" 12 Bolt, 30 Spline - Steel (Car 12 bolt only)

  • Made from 4140 forged steel
  • Fully heat treated to increase durability
  • Precision CNC machined to decrease deflection and increase ring gear life
  • Available in standard and light weight 
  • The 4 pin eliminates the weak point in the spool and absorbs more shock