Product Details

These Ground Control coilover conversion kits (front) fit the 1971-1978 Mazda RX-3 Front.

Ground Control Coilover Conversion Kits for the Mazda RX-3 add adjustable ride height and corner balance. The threaded spring perch system lowers the car and reduces body roll, and it works with stock or aftermarket struts.

Every kit is hand-built in the USA and backed by a lifetime guarantee on the complete assembly, not just the springs. Ground Control is the West Coast distributor for Eibach ERS race springs, which are warrantied for life against sag and rate change. The anodized 6061-T6 aluminum adjusters lock securely under load.

Standard Features

  • Ride-height adjustable threaded spring perch system
  • Eibach ERS race springs with lifetime warranty against sag and rate change
  • Any race or street spring rate available on request
  • 6061-T6 anodized aluminum adjusters with square-cut threads that lock under load
  • Setscrew-secured spring seat holds your ride-height setting in place
  • Upper spring perches insulate the spring for quieter operation
  • Designed to work with stock or aftermarket dampers
  • Adjustment wrench provided where required
  • Hand-built in the USA with a lifetime guarantee on the complete kit, not just the springs
Specifications
Part Number 5010
Part Name Ground Control Coilover Conversion Kit
Vehicle 1971-1978 Mazda RX-3
Placement Front
Approximate Drop (inches) - Front 0 to -1.50
Ride-Height Adjustable Yes
Springs Eibach ERS (any rate available)
Notes Removal of the stock spring seat and welding required; kit does not include dampers
Important Fitment Note

This is a spring-and-adjuster conversion kit and does not include dampers. It installs over your stock or aftermarket struts, and removal of the stock spring seat plus welding is required. Please specify your shock type (stock, Sachs, Boge or Koni shocks) before ordering.

Vehicle fitment

This product fits the vehicles listed below.

YearMakeModelNotes
1971MazdaRX-3Removal of the stock spring seat and welding required; kit does not include dampers
1972MazdaRX-3Removal of the stock spring seat and welding required; kit does not include dampers
1973MazdaRX-3Removal of the stock spring seat and welding required; kit does not include dampers
1974MazdaRX-3Removal of the stock spring seat and welding required; kit does not include dampers
1975MazdaRX-3Removal of the stock spring seat and welding required; kit does not include dampers
1976MazdaRX-3Removal of the stock spring seat and welding required; kit does not include dampers
1977MazdaRX-3Removal of the stock spring seat and welding required; kit does not include dampers
1978MazdaRX-3Removal of the stock spring seat and welding required; kit does not include dampers

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