IRS SUPER 8.8-INCH RING AND PINION SET – 4.09 RATIO
By: Ford Racing
#M-4209-88409A
$521.15
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- OEM Quality - our superior surface finish, hardening and manufacturing consistency provide the strongest and quietest gears in the market.
- Requires aftermarket calibration if vehicle is not originally equipped with this gear ratio or a Ford Performance Power Pack Calibration
- Note: 3.15 ratio differential not compatible with 3.31, 3.55, 3.73 and 4.09 ratio gears. Use differential M-4204-MT or M-4204-M
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Time Required: 4 hours (approximately)
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Skill Level: Expert - It's not recommended that you attempt this installation unless you're an experienced Technician.
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Mustang 2015-2020
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