Originally Posted by jon@work
Correct me if I'm wrong, but the 2wd turbos have clearance holes for the manifold studs, and the 4x4 turbos have studs that pass through holes in the manifold (or is it the other way round?) - so unless you're prepared to mess about with drilling out holes/studs and using nuts and bolts, they're not easily interchangeable.
very true !!
the 2wd does have a set of 4 studs in the exh house flange , these will need to be removed and the holes drilled out to make it fit the 4wd manifold !!