ladiges

Hi all,
I have a 1999 Ford F150 with a 4.2. I was looking to upgrade the whole cluster. I have the stock cluster without a tach and was looking to upgrade to an aftermarket one with a tach. I have searched with mix results and was wondering if it can be or has been done. I have called dealerships and they give the "i don't know". I know the circuit boards do no interchange but have heard if the board can be reprogrammed. Any feedback would be greatly appreciated.