If you plan on driving your IRS Cobra hard or doing some drag racing then the Ford Racing differential cover is something to keep your eye on. The stock diff covers have been know to break and fail under heavy load especially at the drag strip. By upgrading to the Ford Racing unit you eliminate the chance of that happening and causing a whole series of issues.
Ford Performance's rear axle girdle cover features load bolts to provide additional support for your pony's differential bearing caps. This cover is constructed from 356-T6 aluminum and is a must for any racing and high performance Cobra Mustang. Because they reduce the amount of flex in your differential while under load, they significantly reduce bearing wear and chipped teeth on the ring and pinion so they'll last longer than before.
