請各位前輩幫我判別變速箱是ZF或GM

[ab9938]

Chassis number ND05821
Vehicle code VA75
Series E90
Model 320i ( 320i N46 )
Body type saloon
Catalog model ECE
Production date 2005 / 11
Engine N46
Transmission Unknown
Steering Left
Catalyzer YES
Additional Information for Vehicle code VA75
Production FROM : 2004/10/01 TO : 2007/09/30
Engine N46
Engine Oil 4.25 Liter
Transmission Automatic
Transmission Model GA6HP-19Z Transmission Oil 9.50 Liter
Rear Axle Oil 0.80 Liter
Coolant(w/o Air Conditioner) 0.00 Liter
Coolant(with Air Conditioner) 8.00 Liter
Brake fluid 1.00 Liter
Remarks :
Final drive (rear axel)

一時興起,去搜尋了相關的車輛資訊
但不太肯定是ZF 或GM
煩請協助判別
另外請問N46配的變速箱會有過橋油封的問題嗎?