A detailed walkthrough for farmers and equipment owners looking to tackle this essential maintenance task.
As someone who’s spent decades working with agricultural machinery, I can tell you that the Allis Chalmers 7010 from 1979 is a classic workhorse that many farmers still rely on. One common issue that crops up with these aging tractors is cab window replacement. Let me share my hands-on experience to help you tackle this job.
Did You Know? The Allis Chalmers 7010 was one of the first tractors to feature a factory-installed sound-reducing cab, making it a revolutionary model for farmer comfort in its time.
The 1979 AC 7010 cab windows are actually similar to what you’d find in some construction equipment from that era, particularly in terms of their mounting system. This isn’t surprising since Allis Chalmers supplied components to several construction equipment manufacturers back then.
Understanding Your Window Options
The original cab windows on the 1979 7010 came in three main sections: the front windshield, side windows, and rear window. Here’s what you need to know about each:
Front Windshield
This is typically the most commonly replaced piece, mainly because it takes the most abuse from flying debris. The original glass was about 1/4 inch thick tempered safety glass. Today, you can still get OEM-style replacements, but aftermarket options are more common and usually more affordable.
Side Windows
These were slightly thinner than the windshield and curved to match the cab’s profile. The driver’s side window often had a small sliding section for ventilation.
Rear Window
This was flat glass, making it the easiest and most affordable to replace.
Fun Fact: The glass used in the AC 7010’s cab windows was actually manufactured by the same company that supplied windows for early Boeing aircraft cabins!
Current Pricing Breakdown (as of early 2024)
Let me break down the costs you’re looking at:
- OEM-style front windshield: $380-450
- Aftermarket front windshield: $280-320
- Side windows: $200-250 each
- Rear window: $150-180
- Installation hardware kit: $40-60
- Professional installation: $200-300
Note: These prices can vary depending on your location and parts availability. Some suppliers might need to special order these parts, which could affect the final cost.
Installation Process
Here’s what you need to know about replacing these windows:
- Removing the old window is usually the trickiest part. The rubber gaskets often become brittle and stuck after decades of exposure. Don’t rush this step – you’ll need a special gasket removal tool (about $15 at any auto parts store).
- Check the window frame for rust or damage. This is crucial because the 7010’s cab frame can rust in the corners where water collects. Fix any rust issues before installing the new glass.
- The new gaskets need to be installed at room temperature. If you’re working in cold weather, keep the gaskets warm until installation.
Money-Saving Tips
- Check salvage yards specializing in old farm equipment. You might find good used windows at 40-60% off new prices.
- Buy all the windows at once if multiple need replacement. Many suppliers offer package deals.
- Consider having a local glass shop cut custom glass for the rear window. This can save about 30-40% compared to pre-made replacements.
- Look for construction equipment salvage yards – sometimes you can find compatible glass at better prices.
Final Thoughts
Replacing windows on a 1979 Allis Chalmers 7010 cab isn’t the most difficult job, but it requires patience and attention to detail. The biggest challenge is usually finding quality parts at reasonable prices. Don’t cut corners on gasket quality – cheap gaskets will lead to leaks and rattles.
Remember, these old tractors were built to last, and proper maintenance like window replacement helps preserve their value. With good care, your AC 7010 can keep working for many more years, whether it’s in the field or at a construction site.
Have you replaced the windows on your AC 7010? Share your experience in the comments below!
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