The entire exhaust is fairly simple. I have a 5" downpipe so...
you need a 10' stick of 5" ex pipe, a 5" muffler (10" round is what i have) as short as possible, a 5" 90* bend, a ~14" tip what ever you like ( i'm gonna change to a mitre cut

), and 2 band clamps. You'll need a couple of exh hangers too.
The front hanger is a 1/2" piece of rod bent at a 90* angle then inserted into a hole (it already has a rubber busing in it) in the transmission.
Right infront of the spring hanger there is a spot to route the pipe out. Once you get under the truck it's pretty obvious.
I'll give this project a 3beer (of a sixpack

) rating because it requires a welder to complete it

Later,
Mark