Cluster Change OK.
I am not an expert on the binnacle guages, but the dash cluster swap is straight forward.
The issues are as follows:
1) If your car is a VY Series 1, then you should source a Series 1 Berlina, Calais or HSV Cluster. A Statesman cluster might also work, but it is harder to determine whether a Statesman cluster is a Series 1 or 2.
2) If you put a Series 2 cluster into a Series 1, then the fuel guage will work in reverse. The trip computer distance to empty (DTE) will also work backwards, which is totally useless. This can be fixed by changing the fuel sender unit in the tank, but at a cost of about the same as a new cluster. Best get it right first time.
3) If the cluster you get has less than 100 km on the odometer, then Holden can set it to your car's odometer reading during Tech2 calibration. If it has more than 100 km, then instrument specialists can reset it, but at extra cost.
4) The new cluster will require re-calibrating by Holden Tech2, or equivalent software. This can set different wheel/tyre combinations, different airbag fits, set the tacho to V6 or V8 and some other parameters.
5) The cost of Tech2 calibration seems to vary widely, from nothing to approaching $100, so get a quote first.
Good luck with the mods.
