Buy OEM 1975 Volvo Part # 985939. Suspension Control Arm Nut (M14, M14x14, Left, Right, Front). Suspension Control Arm Control arms often don’t fail on their own, although

Flange Nut. Wheel Suspension.
Nut used to secure the control arm.

FLANGE NUT

Fits Polestar 1, S60, S90, V60, V60 Cross Country, V90, V90 Cross Country, XC60, XC90

Suspension Control Arm
Control arms often don’t fail on their own, although their associated bushings can break or wear causing a clunk noise when your 1975 Volvo goes over bumps or changes speed rapidly—whether braking or under hard acceleration. Control arms can also sometimes become bent, causing your vehicle to pull to the left or right.