A left-and-right pair of precision division bar glass run channels designed for First Series vehicles (GRP 1111 51). These channels secure and guide the vent/window glass at the division bar, restoring proper alignment, weather sealing and smooth window operation. Constructed from durable rubber with integrated retaining edges and a corrosion-resistant backing, the pair prevents wind noise, water intrusion and vibration while providing a long-lasting replacement for worn or damaged originals. Ideal for classic car restoration or maintenance, the set offers reliable fit, improved seal performance and straightforward installation.
Features:
- Fits First Series vehicles (GRP 1111 51) — supplied as left and right hand pair.
- Durable rubber profile with integrated retaining lip for secure glass seating.
- Corrosion-resistant backing/retainer for long service life and stable fitment.
- Restores proper seal and alignment to reduce wind noise, rattles and leaks.
- Direct replacement for worn or brittle original channels — ideal for restorations.
- Easy to install with basic tools; improves window operation and weatherproofing.
Installation / Application:
- Difficulty: 2/5
- Estimated time: 30-60 minutes (pair)
Instructions:
- Remove the interior door trim and any window or vent glass retaining screws to access the division bar area.
- Carefully remove the old glass run channel from the division bar, noting how it seats into the channel track.
- Clean the channel track and surrounding metal of dirt, adhesive residue and corrosion; wipe dry.
- Test-fit the new channel on the division bar to confirm left/right orientation and alignment.
- Apply a light lubricant (silicone spray or soapy water) to the new rubber channel to ease installation.
- Starting at the top, press the new channel into the track along the division bar, working downward and ensuring the retaining lip fully engages.
- Trim any excess material if necessary and use a heat gun briefly in cold conditions to help the rubber conform.
- Reinstall glass, checking for smooth operation and proper sealing; reattach door trim and fasteners.
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 |
Truck |
1951 - 1955 |
| GMC |
Truck |
1951 - 1955 |
