There seems to be a fair amount of whinging across different forums regarding the R160 and 4.444 setup.

I'm wondering if its the added pressure on the crown and pinion running this Cusco two way plated diff. It could also be that the R160's that im sourcing from various people are just a bit long in the tooth.

So my options could be..

R180 upgrade..
Replacement of the crown and pinion (brand new) with my existing R160.
Replacement of the crown and pinion (secondhand) from a wreck.