Rancho RockGear Differential Covers are the internal gear's ultimate protection designed for extreme four-wheelers. Built-tough from high-strength nodular iron integrated with external ribs to endure heavy trail impacts. It is designed to hold more fluids to help dissipate heat build up on your gear oil. Each differential cover provides an excellent fit and bolts quickly without modifications. Offered in durable red powder coat or black powder coat finishes. Rancho's RockGear products are covered by 1-year warranty against defects in materials or workmanship.