how far?

we are putting a 82 crewcab dually on simi wheels. the rear end we are using is out of a 85 3/4 ton. it has been narrowed 5in. is that enough or do we need more? we would like to not have to extend the fenders!! thanks for the help!

u need to talk to lockone. He is the guru on the dually scene. www.duallyscene.com

he is who we ordered the wheels from!!
they look great!!