[WKB]

Sambo,
Havn't fitted the diff to the car yet as I am waiting to get it registered(August 24th trip to the transport dept for the final inspection). I want to feel what it is like before I decide wheter I will change the ratio. Most of the Jap cars that use the 1uz V8's use diff ratios around 3.9 to 4.1 so the 4.1 I am using will suit the motor I am using but I will be 500 - 600kgs lighter.With yours the taller diff ratio might be an advantage as 3.7 would be arounnd the ratio the performance holdens would be using.
If your are after a replacement then the diffs Warwick uses are from nissan silvas. All you do is replace the back cover and drive shafts and it bolt straight in.
One was on Ebay that didn't sell in melbourne for $200 a couple of days ago.

Warren