Strong judder through st wheel at 25-30mph

Recently developed a strong judder in RR 4.6 HSE through steering wheel at 25 to 30 mph. Changed all four tyres and had them balanced and all tracking done but still the judder persists. What next?

swivel pins?

Thanks G-Man, We'll see what they come up with at MOT tm!

prop U.J.'s?

Hope your MoT coming up soon then! If you`ve serious vibration then something ain`t right. Apart from safety issues, and they should be obvious enough, then consider what further damage (possibly expensive) any vibration is causing! Are you on standard wheels `n` tyres? Or running L322 ones? If the latter make sure adaptor rings & correct nuts fitted. Try swopping wheels front to back,may have some effect, remembering to adjust pressures.

hiya,i had the same problem at the same speed,it was the o/s uj the one near the transfer box,hope this helps mate.