For the ultimate in lightweight competition traction nothing beats the Cal Custom Brute superlite machined steel full spools in your Ford 9 inch rear end. At nearly the weight of aluminium and in stronger CNC-machined steel, our superlite full spool is the best value in strength and lightweight performance.

• For Ford 9 inch 31 spline rear axles
• CNC-machined to precise dimensions ensures top quality and fit
• Superlite steel full spool weighs only 5.53 pounds versus 8 pounds for a standard weight spool
• Premium steel construction provides superior strength without excessive weight, only ½ pound heavier than aluminium
• Reduce rotating weight for quickest spin-up time to maximum rpm, and reduce unsprung weight