Helical Limited Slip Differential for use with US Ford 9" 31 spline axle setup. 


The advantages of the Blackline Helical LSD include:


  • Equal rotational speed to both wheels
  • Torque distributed according to traction
  • Minimal service requirements - no clutches
  • Quick reaction compared to viscous LSD setups
  • Gentle and progressive engagement, low noise
  • Easily controlled power on take-off and drifting
  • Gears and body manufactured from 8620 alloy steel
  • Direct replacement into a stock differential
  • Top quality at a competitive price

Blackline HLF017/31 - Ford (US) 9" Rear - 31 Spline Helical LSD

  • Suitable for US Ford 9" 31 spline axle setup (check with us for suitibility)