FWIW #2:
Dating back say only 5 years ago we could all purchase GU & GQ 140A alternators readily available from major offroad retailers (stores) Australia wide.
It is my personal belief the reason they are not available now is due to diode and OEM belt issues as experienced above.
Baxters has the highest Amperage (off the shelf) for GU’s (130A) that I know of now and only a (100A) for GQ’s with the vaccy pumpy back on them.
Happy to be corrected, if so please, I’ll buy 10 of each


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