I'm also happy with the fitting service I used. Craft Diffs at Peel Street, Holroyd Sydney. $275- for strip and rebuild with new carrier bearings, reset pinion preload (bearings fine), replace doughnut flange with 4-bolt type and make spacer, lap and set backlash, fit new seal.

In their opinion the Ashcroft unit is the best made locker they have come across. Stronger they say than a Detroit (6 vs 4 gears), better finish on machining. He asked for their details as he wants to know if they'll do some custom on off work. I also asked about what oil they'd recommend. They always use Penrite 85-140 LSD oil, despite not requiring it, they run it in all types of diffs, open, soft, auto, mechanical, clutch & selectable. Stops issues with people using the wrong oil in the workshop and storing quantities of different stuff but primarily it copes better with higher temps & higher pressures.

After Sunday's outing, I'd agree it's quieter (as you can rtell under a V8 Disco. No clunking at all and can't tell when it's working or not. Apart from the TC light flashes far less and only momentarily when it activates and you start to move more with traction.

One happy camper.