[HETPE3B]

Since the other thread about GM cluster was closed and I still have quite a few questions I decided to open the common All In One thread about those clusters, regarding programming, repair, upgrade.
Let me start with a few questions:
1) There are 6 and 7 gauge clusters. 6 gauge clusters are designed to accommodate 7th gauge as well. If I add the stepper motor and a light bulb, replace the face plate - should the cluster be reprogrammed to be able to work with the new gauge or it will start to operate normally because BCM sends all the info through the line?
Or should I copy the dump from the cluster which originally was coming with 7 gauges? Or anything else?

2) If the cluster is coming from 2003 Tahoe 4wd and I would like to install it to 2004 Silverado 1500 2wd (or any other combination) should anything be done besides the VIN number programming (e.g. should I find a dump from 2004 Silverado and write it to 2003 Tahoe cluster, or anything else)?

3) If I would like to install the cluster from 05-06 Silverado into 03-04 Silverado - should I only correct the VIN and mileage accordingly or I should write a dump from 03-04 Silverado cluster into 05-06 Silverado cluster?

4) Everybody knows about the problem with a dimmed PRND display on those clusters. But if similar problem is with odometer display when it is 50% dimmer? Is there any way to fix it?

5) Language scrolling problem. Also quite a common issue with those clusters. Sometimes it is a matter of the damaged push-button on the board, but usually it is related to the short circuit on the circuit board. Did anybody find the spot on the board making this happening? Is it a failed component or some kind of traces/contacts oxidation problem?

6) I noticed some clusters have the following options:
- odometer-> trip -> hours
- odometer-> trip a-> trip b-> hours
- odometer-> private-> business-> hours
What setting (or byte in eeprom) makes the cluster to reflect first, second or third choice from the list?

7) What byte in eeprom is making the change from miles to km?

I guess this is it for the questions I have so far