Reproduction of the original square-hole style headlamp mounting bucket, engineered for use with various 1958-82 GM vehicles equipped with 5-3/4" round quad headlamps. This bucket allows precise beam alignment and securely retains the sealed beam unit using three mounting tabs that connect to the headlamp trim ring. Designed to replicate GM part numbers 5965890 and 5950513, this assembly is essential for a functional and factory-correct front-end restoration. Original GM 'C" stamping. Features and Benefits: Authentic reproduction of the OE "square-hole" style bucket for accurate restoration Supports proper headlamp aiming and secure fitment Three integrated tabs allow secure mounting of headlamp trim ring Compatible with various GM vehicles using 5-3/4" quad headlamp systems Technical Information: Application: 1958-82 GM models with quad headlight systems Headlamp Size: 5-3/4" sealed beam round lamps Construction: Stamped steel with square-hole adjustment style Mounting: Accepts standard GM adjustment screw and nut assemblies Replaces GM Part #: 5965890, 5950513 Chevrolet Applications: 1958-1964 Chevrolet Impala (LH Outer) 1958-1964 Chevrolet Bel Air (LH Outer) 1958-1964 Chevrolet Biscayne (LH Outer) 1965-1966 Chevrolet Impala (RH Outer) 1965-1966 Chevrolet Bel Air (RH Outer) 1965-1966 Chevrolet Biscayne (RH Outer) 1966-1966 Chevrolet Caprice (RH Outer) 1969-1976 Chevrolet Impala (RH Outer) 1969-1976 Chevrolet Bel Air (RH Outer) 1969-1976 Chevrolet Biscayne (RH Outer) 1969-1976 Chevrolet Caprice (RH Outer) 1970-1970 Chevrolet Chevelle (RH Outer) 1970-1970 Chevrolet El Camino (RH Outer) 1958-1961 Chevrolet Pickup Truck (C/K) (RH Outer) GMC Applications: 1958-1972 C/K Pickup Truck (RH Outer) Pontiac Applications: 1967-1969 Pontiac Firebird (RH Outer) Application Notes: LH = left hand driver side RH = right hand passenger side
