Standard cars come with a rubber/metal combination bush, which isolates noise well and is usually the only option for a manufacturer. However, when it comes to freedom of rotation and accurate location of the wishbone ends under load, it leaves a lot to be desired.
The Nitron wishbone bearing kit replaces all the inner rubber bushes with 15mm Teflon-lined spherical bearings. These are typically frozen prior to installation. On either side of the bearing is a spacer machined from 7075-T6 hard anodised aluminium. These spacers have an ‘O’ ring seal placed on them before they are inserted into the bearing.
There is no need to tighten these into a particular position like rubber bushes and, as they are fully sealed, they will not require any maintenance.
The kit comprises of 8 shorter and 8 longer bearing assemblies for the front end of the rear lower wishbones. Lithium-based waterproof grease is recommended for their installation. (Available as part of the NTR R1/R3 installation accessory kit)