The Precision Glass Run Channel GRB 1111 73 is a direct-fit left or right-hand window channel designed to guide and seal the door glass. It restores proper glass alignment, reduces wind noise and water intrusion, and protects the window from wear during operation. Constructed from durable, weather-resistant materials with a corrosion-resistant backing, this channel delivers reliable long-term performance and smooth window travel — ideal for restoration, repair, or routine replacement of worn channels.
Features:
- Left or right-hand application — GRB 1111 73 fits either side as specified
- Constructed from weather-resistant rubber and a corrosion-resistant internal channel for durability
- Guides and secures the door glass to prevent rattles and misalignment
- Reduces wind noise and prevents water leaks into the door cavity
- Direct-replacement design for straightforward restoration or repair projects
- Improves window operation and helps protect glass edges from damage
Installation / Application:
- Difficulty: 3/5
- Estimated time: 60-120 minutes
Instructions:
- Lower the window to a position that allows access to the top of the glass (if possible) and disconnect the vehicle battery if required by the vehicle.
- Remove the interior door panel and any vapor barriers per the vehicle service procedure to expose the window channel area.
- Carefully detach the old glass run channel: peel back the channel lip and slide it out of the door frame. Use trim tools and pliers as necessary to free any clips or adhesive.
- Clean the channel mounting area and glass edge with solvent to remove dirt, adhesive, and residue. Allow to dry.
- Apply a light coating of silicone spray or soapy water to the new channel’s inner seal to ease installation and protect the rubber during initial seating.
- Starting at the top corner, press the new glass run channel into the door frame groove. Work along the length of the channel, ensuring the rubber lip seats fully into the channel and any retaining clips align.
- Carefully lower or raise the glass into the new channel, ensuring smooth travel and correct alignment. Adjust glass positioning and channel seating as needed.
- Reinstall any vapor barrier and the interior door panel. Operate the window several times to confirm quiet, smooth operation and to ensure there are no leaks or binding.
- Inspect for proper fit and trim any excess material if required by the vehicle. Recheck fasteners and clips for secure attachment.
About Precision Replacement Parts
Since 1986 Precision Replacement Parts has been a trusted name in the Automotive Glass Industry.
Our knowledge and experience in manufacturing millions of extruded and molded EPDM Rubber, PVC and HDPE based plastics, and various stamped and extruded metal products for the classic and late model industries has allowed Precision to expand our services into multiple product markets.
Along with our own USA based production facility, Precision also partners with 25 different manufactures worldwide with a reputation as a global leader supplying OEM and replacement products to a number of different industries. Our partnerships along with our own in-house manufacturing and fabrication capability gives Precision a unique position in helping to meet the expanding needs of customers everywhere, providing them with a sustained competitive advantage.
Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
| Make |
Model |
Years |
| Chevrolet |
Blazer |
1973 - 1974 |
| Chevrolet |
C10 Pickup |
1973 - 1974 |
| Chevrolet |
C10 Suburban |
1973 - 1980 |
| Chevrolet |
C10 |
1975 - 1980 |
| Chevrolet |
C20 Pickup |
1973 - 1974 |
| Chevrolet |
C20 Suburban |
1973 - 1980 |
| Chevrolet |
C20 |
1975 - 1980 |
| Chevrolet |
C30 Pickup |
1973 - 1974 |
| Chevrolet |
C30 |
1975 - 1980 |
| Chevrolet |
C50 |
1973 - 1980 |
| Chevrolet |
K10 Pickup |
1973 - 1974 |
| Chevrolet |
K10 Suburban |
1973 - 1980 |
| Chevrolet |
K10 |
1975 - 1980 |
| Chevrolet |
K20 Pickup |
1973 - 1974 |
| Chevrolet |
K20 Suburban |
1973 - 1980 |
| Chevrolet |
K20 |
1975 - 1980 |
| Chevrolet |
K30 Pickup |
1973 - 1974 |
| Chevrolet |
K30 |
1977 - 1980 |
| Chevrolet |
K5 Blazer |
1976 - 1980 |
| GMC |
C15 Suburban |
1975 - 1978 |
| GMC |
C15/C1500 Pickup |
1973 - 1974 |
| GMC |
C15/C1500 Suburban |
1973 - 1974 |
| GMC |
C1500 Suburban |
1979 - 1980 |
| GMC |
C1500 |
1979 - 1980 |
| GMC |
C15 |
1975 - 1978 |
| GMC |
C25 Suburban |
1975 - 1978 |
| GMC |
C25/C2500 Pickup |
1973 - 1974 |
| GMC |
C25/C2500 Suburban |
1973 - 1974 |
| GMC |
C2500 Suburban |
1979 - 1980 |
| GMC |
C2500 |
1979 - 1980 |
| GMC |
C25 |
1975 - 1978 |
| GMC |
C35/C3500 Pickup |
1973 - 1974 |
| GMC |
C3500 |
1979 - 1980 |
| GMC |
C35 |
1975 - 1978 |
| GMC |
C5000 |
1979 - 1980 |
| GMC |
Jimmy |
1973 - 1980 |
| GMC |
K15 Suburban |
1975 - 1978 |
| GMC |
K15/K1500 Pickup |
1973 - 1974 |
| GMC |
K15/K1500 Suburban |
1973 - 1974 |
| GMC |
K1500 Suburban |
1979 - 1980 |
| GMC |
K1500 |
1979 - 1980 |
| GMC |
K15 |
1975 - 1978 |
| GMC |
K25 Suburban |
1975 - 1978 |
| GMC |
K25/K2500 Pickup |
1973 - 1974 |
| GMC |
K25/K2500 Suburban |
1973 - 1974 |
| GMC |
K2500 Suburban |
1979 - 1980 |
| GMC |
K2500 |
1979 - 1980 |
| GMC |
K25 |
1975 - 1978 |
| GMC |
K35/K3500 Pickup |
1973 - 1974 |
| GMC |
K3500 |
1979 - 1980 |
| GMC |
K35 |
1977 - 1978 |
