Tools You'll Likely Need:
* New window: Ensure you get the correct window for your truck's door (some were curved).
* Window regulator: If it's damaged, you'll need a replacement. Inspect it carefully before starting; often, it's the source of window problems.
* Screwdrivers: Phillips and flathead, various sizes.
* Pliers: Needle-nose and possibly slip-joint.
* Socket set: May be needed for regulator bolts.
* Putty knife or trim tool: To carefully pry off interior trim pieces without damage.
* Window channel lubricant: Helps the window glide smoothly.
* Safety glasses: Protect your eyes from broken glass.
* Gloves: Protect your hands.
Steps (General Outline - Consult your repair manual for specifics!):
1. Disconnect the Battery: This prevents accidental shorts.
2. Remove Interior Door Panel: This usually involves removing screws, clips, and possibly unhooking some wiring harnesses for the door lock, window switch, and speakers. Take your time and note how each component is attached for reassembly. Pictures are invaluable here.
3. Assess the Window Regulator: Inspect the regulator for damage (bent arms, broken gears, etc.). If it's broken, you'll need to replace it before installing the new window. Removing the regulator often involves removing bolts and potentially disconnecting linkages.
4. Remove the Old Window: Carefully remove the old window. This may involve removing weather stripping, clips, or other retainers. Be cautious of sharp glass shards. If the glass is already broken, protect yourself accordingly.
5. Install the New Window: Gently insert the new window into the window channel. Make sure it's seated correctly. This step may require careful maneuvering.
6. Reinstall the Window Regulator (if necessary): If you replaced the regulator, reinstall it, ensuring all linkages and bolts are properly secured.
7. Reinstall the Door Panel: Carefully reverse the steps you took to remove the panel, ensuring everything is properly connected.
8. Test the Window: Operate the window switch to ensure it moves smoothly up and down.
9. Lubricate: Apply window channel lubricant to help the window move smoothly.
Important Considerations:
* Window Channel Condition: Examine the window channel for damage or wear. If it's severely damaged, it may need replacement or repair before installing the new window.
* Weather Stripping: Replace worn weather stripping while you have the door panel off. This will help prevent leaks and drafts.
* Professional Help: If you're uncomfortable performing this repair yourself, it's best to take your truck to a qualified mechanic. Window replacement is easier with the right tools and experience.
This is a generalized guide. Specific steps and tools may vary depending on your truck's model and condition. Always refer to a repair manual specific to your 1979 Chevy pickup for detailed, accurate instructions. A Haynes or Chilton manual would be a good investment.
