Hey guys,

Just wanted some opinions on what I should do.

I currently have a VY Auto Transmission fitted in my VS which is running a VY L67 with a VS L67 engine loom and VS L67 ECU.

According to the AC Delco Transmission Catalogue:

A VS Supercharged V6 should have a 7HLD (24217706) Transmission fitted.
A VY Supercharged V6 has either a 3HND (89058665) or a 4HND (89058665) fitted, depending on what year it was built.

Now, because my VS has a VS L67 ECU, should I be running the 7HLD Transmission?

What problems could happen in the future (if any) if I keep the 3HND or 4HND (not sure which one it is) installed?

Another problem, being a VY engine, it has a VY engine sump. So I need to use the VY bell housing or else I can't fit the flex plate cover.

The transmission bolted up the same, but is it the electrical sensors/plugs that are different?

With the transmission currently installed, there is 2 plugs on the left side of the transmission, and I don't have anything to plug into them as there was no plugs on the wiring loom for them (VS L67 wiring loom), could this cause any problems?

Sorry about all the questions, I just want to get this sorted out once and for all.

Thanks in advance.