The oem version of the 4ws rear track rod ends is obsolete.
All aftermarket versions I can find, are no longer in production.
I have several of these replacements available.
These are high quality track rod ends, and are direct replacements.
They will come with new nyloc nuts, and lock nuts.
They are available at £25 ea delivered.(uk)
£45 a pair delivered (uk)
Marty
