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Mono Leaf Spring
Suit Holden HK-HT-HG, Use With Caltrac CT11600MOD

Calvert Racing's Mono-Leafs are used by drag race enthusiast across the nation that demand nothing but the best performance! Tested on the fastest stock suspension cars in the world. They have been proven to withstand over 1,500 HP and 1/4 mile ETs in the low 7s!

These leaf springs were designed to control and reduce excessive body separation in the rear suspension. Yet, are very active. Helping plant the rear tire without unloading. They also offer great stability at top end.

Heavy duty springs help reduce spring wrap. All springs are assembled with grade 8 hardware, and heavy duty alignment clamps unlike any other. Aluminum bushings are pressed in front spring eyes, and polyurethane bushings are in rear spring eyes.


  • Direct replacement
  • Various ride height options
  • Heavy duty 2 leaf design
  • Heavy duty alignment clamps
  • Aluminium bushings in front spring eyes included
  • Polyurethane bushings in rear spring eyes included
  • Durable gloss black finish
  • Made in the USA
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