63 Upper Control Arm Nuts

[Michael G.]

Does anyone know the correct finish for the hex nuts that attach the upper control arm to frame on a 63?

Thanks,

[Philip C.]

Re: 63 Upper Control Arm Nuts

Does anyone know the correct finish for the hex nuts that attach the upper control arm to frame on a 63?

Thanks,

Hi Mike my April car were white cad. Phil 8063

[Joe L.]

Re: 63 Upper Control Arm Nuts

Does anyone know the correct finish for the hex nuts that attach the upper control arm to frame on a 63?

Thanks,

Mike------


GM says that nut GM #3722853 was used and that nut was cadmium or zinc plated. It is a 7/16-20 thread size and GM 301M material grade. It was discontinued from SERVICE in January, 1968 and replaced by a stover-type locknut.