Will a 1994 Nissan pathfinder transmission fit a 1999 qx4 infinity?
no it will not, most major parts are not compatible as the qx4 has a different 4wd system.
Why does my 1994 Nissan Pathfinder 4 wheel drive auto hub makes grinding noise after shifting from reverse to drive automatic transmission?
Yes! I did this to a 1994 Nissan 4x4. But you will also have to buy the headlights and marker lights. The metal behind the grill is all the same between the pathfinder and pickup truck from back then. The only other thing you will have to do is change the plugs on the end of the wiring harness for the lights but it is really simple.
I have owned several Nissan trucks since 1989 and the ECM has always been under the passenger's seat. This keeps the unit out of the extreme heat/cold and dampness under normal driving conditions. I just reprogramend my keyless entry on my 1995 pathfinder, the module was located under the driveride seat