Hi, the ball joint in my Sierra track control arm is a bit 'noisy'. Is there a way to add grease to it?
tia
jos

If its noisy there's a good chance it is just knackered and need replacing.

If the ball-joint has rust on it, replace it.
It won't be lasting long.

Normal a ball-joint is greased for life.
Just remove cover and check the balljoint.

.... unless it is on a land rover ... you can drill the cover and fit a grease nipple but as ^^^^ said, if it is noisy, then most likley the ball has rusted. last thing you want is the ball joint seaizing or failing especially when they are peanuts to replace. (hard bit is removing them).

ijust changed my nearsde drive shaft assembly the difference was amazing i would just bit the bullet.

Available from all good motor factors for a~£7 per side so repace both as a matter of routine.

According to Haynes manual, the complete front lower arm must be renewed if the ball joint is worn. So how can I replace the ball joint (is it pressed i n?), and under which Ford part number can it be ordered?

complete control arm.

2WD: Ford OEM 5021 461 taper is 14.00 degr (left)
Sidem: 3282
2WD: Ford OEM 5021 460 taper is 14.00 degr (right)
Sidem: 3283

4WD: Ford OEM 1632 767 taper is 17.00 degr (left)
Sidem: 3782
4WD: Ford OEM 1632 766 taper is 17.00 degr (right)
Sidem: 3783

Sidem is a aftermarket company in Belgium, so maybe cheaper.

[Edited on 14/8/07 by t.j.]