GM NOS 20008959 Window Sash Guide Clip — 1977–1992 GM Full‑Size RWD — OEM, Discontinued
type: Unknown Type
Vendor: CorvairFarmer
Description:
GM PART 20008959 — SPECIFICATION & FITMENT CHART
🔧 Part Specifications
| Attribute | Details |
|---|---|
| GM Part Number | 20008959 |
| Description | GUIDE, Front Door Window Sash / Clip Assembly, Front Door Black |
| Function | Guides and stabilizes the front (and some rear) door window glass within the sash channel |
| Dimensions | ~1.9 × 1.3 × 1.1 in (varies slightly by listing) |
| Weight | ~0.30 lb |
| Condition (NOS) | Discontinued by GM (U.S. since 2008; Canada since 2009) |
| Typical Quantity Required | 2 per vehicle (front doors) |
🚗 Vehicle Fitment (Verified OEM Coverage)
GM Full‑Size RWD Platforms — 1977 through 1992 (Front door primary; some rear door applications)
Buick
-
1977–1981 B, C (Front)
-
1980–1981 B35‑69, C69 (Rear)
Cadillac
-
1977–1980 C, D (Front)
-
1980 C69 (Rear)
-
1984–1992 D‑Body (Front) — Fleetwood Brougham, RWD
Chevrolet
-
1977–1981 B (Front)
-
1978–1979 A19‑35 (Front)
-
1980–1981 B35‑69 (Rear)
-
1982–1990 B (Front)
-
1985–1987 T (Front)
Oldsmobile
-
1977–1981 B, C (Front)
-
1980–1981 B35‑69, C69 (Rear)
Pontiac
-
1983–1989 (Front)
-
1985–1987 T (Front)
