Fits the following models：
for GTO 442 Chevelle GM Buick 64-68
for GM cars from 1957 to 1973

Guide the sliding of door leaves: The door glass regulator rollers and rivets are installed at the upper and lower ends of the glass door, which play the role of guiding the sliding of the door leaves, ensuring that the door slides more smoothly and smoothly, reducing friction and noise.

High-quality door glass regulator rollers can bear the weight of the glass door, ensuring the safety and stability of the door.

Save effort: The door and window pulleys can save the effort required to open and close the doors and windows through their design, making the operation easier and more comfortable.

Enhance stability and balance: The friction between the door glass regulator roller and the track is small, making the doors and windows less likely to shake when opening or closing, maintaining balance, and avoiding sagging or tilting of the doors and windows due to gravity.

Package Includes：
6 pc door glass regulator rollers and rivets