Hi,

I have just bought a Defender 127 Dropside tipper 1990, it has a Mazda 3.5 diesel in it and an unknown manual gearbox; it has a smooth housing and I can't find the data plate, but that's beside the point. going off on a tangent.

My question is does anyone have an experience of the Mazda 3.5 or a ZF 4HP22; or even when combined?

Been reading conflicting stories about how reliable the gearboxes are when mated to torquey motors.

Thanks in Advance.

 

No idea about the combo you are considering but I know of more than a few success stories with a ZF 4HP22 behind a GM 6.2/6.5 diesel v8 pushing on the high end over 300ft lbs of torque with no problems. Driving intelligently of course.