Oil gauge fix
 

you can fix the oil gauge/sender link for your 3.4 by removing the oil gauge, sender and zeroing the gauge to match your sender. You need an air source, a 12v source and a air gauge setup for a compressor. Set it up like this. Bend the bi-metal strip in the gauge to start at zero. Put some air in the sender. I have 15 psi in there for the first reading. Second stage - I have 58 psi in the - gauge is about half way up. Reinstall sender and gauge. Enjoy not spending $180 on a new sender.