Thats weird about the haldex unit in the Freelander, what an oddity, I've run staggered, slicks and weirdo sizes all over my track TT, its subject to all forms of abuse and I have the haldex unit locked in permanent 50/50 with a PowerTrack insert as well.
The clutches are fine and the diffs have never sh*t themselves either.
Back to the OP, I rotate front to back, get the most out and replace all 4 at the same time
