Right – you’ve had what i had. Take lowers off and you will have all the oil in the lowers. The seal inside the rebound tube assembly will be gone.
A £20 kit from TFT will sort you out. I did mine no probs.
All the oil from inside your dampener will be in your lower leg.
Feel free to post me any Q’s
EDIT:
linky.
You will need the small fat one in the bottom right – the rebound cartridge slides up inside a thicker tube this seal is what separates the damper oil from going into the lower.
You tube videos available and they show you what to do – although apparently there are two types of rebound assemblies depending on age.
2nd EDIT:
SRAM Technical manual
The seal is in the bottom of part no.10