Hi,I dont know about factory wheels, but my backspacing is 4.5 front,4.0 Rear on aftermarket wheels with fiberglass GT5 flares. They fit well,no scraping.
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.