Swapping carbide 1.2 spindle for 1.5 gpenny- wiring help

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Hello
I want to switch my Carbide 1.2kw spindle for the gpenny 1.5kw. I have v1 of the carbide spindle which only has an ER11. The 1.5kw is an ER16. I believe the carbide is a gpenny 1.2 kw spindle anyway
My question is the connection on the 1.5 kw spindle is 4 prong like the 1.2 kw bit different size (larger).
Does anyone have hx of doing this? Can I just assume the wires on the carbide 1.2kw connector is the same as the 1.5kw and I can just change connectors?

Btw I’ve searched this site and google wo an answer
TIA

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I am pretty sure the VFD from Carbide3D will need to be tuned to the the new spindle and their VFD is locked down.

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