The best replacement for leaf springs is coil springs.

The best alternatives to leaf springs are rated as following:
★★★★★  coil springs
★★★★  blocks
★★★★  4 link
★★★★  torsion axles
★★★  shocks
★★★  coils
★★  air bags
★  coilovers
★  torsion
★  airbags
★  ladder bars
★  coil
  coilover
  lift blocks
  multi leaf springs
  torsion bars
  steel leaf springs
  coil overs
  parabolic

Your alternative for leaf springs is not listed? Suggest!
Speaking about leaf springs, one probably shouldn't forget about 4 link.

Other search terms related to leaf springs and their ratings are:
★★★★★ 4 link
★★★★ coil overs
★★★★ ladder bars
★★★ air bags
★★★ coil springs
★★ air ride
★★ airbags
★★ coil over shocks
★ traction bars
★ coilovers
You have in mind a companion for leaf springs and it is not yet here? Propose!



Google Trends

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leaf springs
coil springs
blocks