- Correct Finish
- Correct size flange nuts
- Fits either left or right quarter window regulator
- Fits coupe or convertible
- Replaces original GM Part # 4405524
- One set does one rear quarter window
- Made in USA
Correct quarter window track retaining nut with large flange. 3 Required per side. 1/4-20 thread, 7/8" washer, gray phosphate & oil finish 7/16 hex.