Is your Manual ML Triton (06- on) suffering from significant driveline vibration following a suspension lift?
This is due to the use of two piece tailshafts in the manual variants. Auto Tritons use a single piece tailshaft and don't suffer from this problem. What this spacer will do is, once installed between the rear diff and the tailshaft, it lowers the bearing by 5-8mm which helps to re position the driveline and should also prolong the life of the centre bearing.
**Please note that in some circumstances spacers may not solve all vibration issues.