My first question is about brake lines.
What fitting do I need for the front driver side brake line, there's a small hole in the line that goes from the distribution block to the frame. I'm guessing it's about 2-3 feet in length, but I'm unsure as to what size fitting I'll need and size of the line it is.

My second question is about exhaust.
I'm thinking of Installing a custom duel exhaust in the truck and I'm unsure if i need a X-pipe in the new system.
any help would be appreciated.

 

true duals do not include an x pipe.