I purchased a new MC recently for a V8 Pathy that I am going to install on my V6 Frontier. The pedal feel is very soft on the factory brakes and upgrading to the V8 MC provides a larger MC bore with better feel. The only problem is that the master cylinder I got in the mail has four ports, whereas my truck is only setup for two ports. The other V8 engine bays I have seen didn't show the lower ports so I am wondering if I received the wrong part. If you could mark the ports where each line goes on the MC and ABS distribution block I would really appreciate the help! I was only able to trace the top two lines shown in the pictures below.
![Image](http://www.rockauto.com/info/31/BA0729764-1__ra_p.jpg)
![Image](http://i20.photobucket.com/albums/b238/nitroracer/28.jpg)
![Image](http://i20.photobucket.com/albums/b238/nitroracer/27.jpg)