Land Rover Defender RTC Steering Damper. Suitable for all Defender Models. Terrafirma return to centre (RTC) steering damper is an uprated steering damper but most importantly by incorporating an external coil spring the self centering action is greatly enhanced. Especially important when using larger than standard tyres at lower than normal pressures. Pictures are for reference only and specifications may alter without notice. Product specifications are given but it is up to the end user to ensure that the product is fit for that purpose. Please leave a contact number ...