Oil pump repair kit. Fits Continental engines. Drive gear is 2-15/16 inch O.D. contains:1-760156M1 relief valve,1-1750052M1 alum gear finished,1-1750090M1 gear & shift assembly,2-760195M1 split bushing,1-1000866M1 spring,1-1750087M1 gasket,1-1500015M1 sm gear blank finished,1-1750126M91 set screw.