Each TJM coil spring is made to our exact specifications. Designed and tested by local engineers our range incorporates a host of unique design features to suit your vehicle. Our linear coils provide a regular spring rate that offers consistent suspension performance. TJM coil springs offer improved ground clearance and stability, optimum carrying capacity and ride comfort. Your original factory springs will often be subject to fatigue and reduced performance when subject to additional LBA weight or use in extreme environments.