OTC 1930 Tubular Spanner Wrench for Chevrolet and GMC Six-lug spanner-type wrenches remove and install rear wheel bearing locknuts They're built for use with a 3/4 inch square-drive ratchet or breaker bar Socket O.D. is 2-7/8 inch Designed for servicing Chevrolet and GMC 11,000 to 13,500 lb axles Limited Lifetime Warranty