Silence those annoying door rattles and restore the factory-fit feel of your late C3 with this 1978–1982 Corvette Door Lock Rod Anti-Rattle Insulator. This often-overlooked component plays a big role in keeping your Corvette’s interior quiet and your lock rods securely positioned inside the door shell. Designed to replace General Motors part number 3997086, this insulator helps eliminate movement and noise from the metal lock rods during driving.
Over time, original anti-rattle insulators degrade, fall off, or disappear entirely—leading to distracting clunks, vibration, and potential wear on your lock components. This reproduction installs easily and brings back the snug, rattle-free door operation your Corvette had when it left the assembly line.
Whether you’re tackling a full restoration or just tired of door noise, this small but mighty piece delivers noticeable results.
Put an end to door chatter. Replace your worn or missing anti-rattle insulator and enjoy the smooth, quiet door operation your Corvette was born with.
Buy 2 or More and Save Up To $0.70 Each