During Ford Racing's performance parts development program for the 2005 Mustang, engineers saw the opportunity to investigate a race version of the new car. The result could be a factory-supported Mustang race program. The first prototype was put through its paces at Mazda Raceway at Laguna Seca to test out its capabilities.

2005 Mustang – Axle Information

2005 Ford Mustang Axle Information & Ratios

Axle code on B pillar Ratio & type
BG 3.31 Conventional differential Std. on V6 Mustangs
CD 3.55 Locking differential Std. w/ manual transmission
CG 3.31 Locking differential manditory on GT Automatics
CB 3.73 Locking optional with manual transmissions
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