exhaust routing down right side frame rail?

I have been search through exhaust post and havent seen this pop up. I have a 225 with AA headers in my flat fender project. The easiest way I can see to route my exhaust on the right side is down my right frame rail, come out of the header, do a little jig and then about 1/2 the pipe would be in the frame rail, 1/2 exposed until I pass the transfer case. Not sure if this is a bad idea or not. If I get it perfect I probably end up with 1/2" clearance between the pipe and frame all around. Will it get the frame hot enough to cook the paint? My dana 30 front has a large pad to the right of the U-joint which looks like it will bang the heck out of my pipe if I route the conventional way around the oil pan.
Jon

 

Should be no problem, that's how mine is.

 

Looks pretty clean, have you driven it with that setup yet?

 

If you are running the D-18 transfer case you won't be able to run the pipe through that location. I found the best route was down the drivers side.