Hi i've got a range rover classic and i've just fitted a 3" lift kit to it. Since doing this i've noticed a loud knocking noise coming from the front whenever you turn the wheel when driving along! Does anyone have any idea what this could be?
My first suggestion would be the front prop. By lifting the front end you increase the angle that the prop shafts have to operate up and they start "binding". Get a lego uj and try operating it at funny angles if you want an example of what this means.
Castor correction won't help in this particular case, indeed it will make matters worse as it will increase teh angle that the front props have to run at. My suggestion would be to look for a cardon prop as fitted to the TD5 discoveries and available from most good off road places (d44 et al).
They aren't cheap (around £150 ISTR) but have an alternative design of joint on them which can operate at a higher angle and stop the prop binding up. This should hopefully reduce the noise.
That is the "correct" solution. The cheaper solution would be to check the condition of the front prop shaft UJs, they may just need servicing, greasing or replacing as the additional strain post lift has sent them over the edge as it were.
