Here's a frame picture I saved showing exhaust routing. I think it's pretty close to stock. I can't remember who's truck this is. Sorry!
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Unrestored 68 C-10 CST. 327 4-Speed. 48,000 miles.
Bismarck, ND
See My truck and rare 1967 prototype pictures at:
http://community.webshots.com/user/toms68cst
MSN Messeger: toms68cst@hotmail.com