I don't know about the JDM version, but we don't have the same 4L30-E tranny as all those other makes and models. We don't even have the same 4L30-E that's used in most other Isuzu's. The 4L30-E has been around a long time and it gets changes almost every year. Our version of this tranny is only used in a '98+ 3.5L Trooper, that's it. It gets different components based on what specific vehicle it's gonna be used in. So they're not all the same.

This is what Isuzu says about our tranny-
"Though similar to the 4L30-E transmission used in other Isuzu models, the 4L30-E in the Vehicross has been modified to deal with the added horsepower and torque."

My tranny is rock solid at 234,000 miles and I wouldn't be surprised if I get 400,000 miles out of it.

Mark Griffin