Help identify this diff

[boostboost]

Hi guys,
I'm new to commos so I don't have much knowledge about them. I have this diff. that I think is from a VT but the input flange is not like your typical 3 bolt triangular flange. By the way its also got a 3.46:1 ratio on the sticker but it also has a Hydratrak sticker on the rear of the housing. I think the ratio could be different to 3.46 and could also be the reason why the input flange is different.





Cheers

[Ado]

Its from a VT HSV GTS.