I have replaced my front axle seal on my 2004 Discovery 2 two times and it still leaks. I tried OEM LR and NAK seals and both of them leak. I noticed when I put the second seal in that the axle alignment was not centred, the seal I took out was in good condition. I am wandering if it is just an axle adjustment issue. Is there a specific procedure on centering the axle within the seal so it does not leak. The owner prior to me had replaced the lower ball joint and I am wandering if it was not adjusted properly. Any advice would be appreciated.