Red Hound Auto Premium Shift Boot Seal (fits manual transmissions only); Highest quality, helps protect shift linkage from dirt and debris; Constructed of durable heavy duty black automotive grade rubber; Direct fit replacement; Base measures approximately 8-1/4" x 7"; Compatible with Ford F-250/F-350/F-450/F-550 Super Duty 1999-2007; Genuine Red Hound Auto product, designed for a direct, perfect fit (Reference: F81Z-7277-BB F81Z7277BB)