rosefisted

AU Series I, 4.0
(all distances are approximate)

LSD - Severe knocking and binding
150,000km - Replacement of diff carrier and bearings

Starter motor
150,000km - Intermittant failure of unit - Would fail to engage (solenoid and electric drive motor)

Leaking power steering rack (from RHS seal)
180,000km - Remove rack, flush the pump and replace entire rack with change over unit. Also, replace sensor. Check around. Replacement units can cost about $350 supplied, not fitted (I checked with my local Repco and they quoted $500, supplied only, not fitted). I managed to get one for $200 with 12-month warranty.

Front hub carriers (LHS & RHS)
200,000km - A clicking noise (kinda like putting playing cards on a push-bike spoke) and vibration under braking. Attributed to worn hub carrier bearings.
NOTE: Check eBay for replacement units - Mechanics I've spoken to reckon they can only get them at about $300 PER SIDE (non-Ford OEM, supplied only, not fitted)... I picked up a pair (non-Ford OEM) from a supplier in Sydney for $160 for a pair, delivered through eBay.