Accessory Drive Belt Guide for the 1958 Studebaker 3E7
Keep your classic Studebaker's essential components running with the right V-belt.
- Your 1958 3E7 uses V-belts, not a single serpentine belt. You may need more than one belt if you have power steering.
- Modern aftermarket brands like Gates and Continental are superior to and more reliable than any 60-year-old original 'NOS' belt.
- A broken belt is a critical failure. It will stop the water pump, causing the engine to overheat rapidly.
- Replacing the belt is a simple, DIY-friendly task that requires only basic hand tools.
Signs of a Failing Accessory Drive Belt
On a classic truck like the 1958 Studebaker 3E7, the V-belts give clear warnings when they are wearing out. Being stranded is never ideal, but a broken belt on this truck can quickly lead to engine overheating. Watch for these signs:
- Squealing Noises: A high-pitched squeal, especially when you start the engine or during acceleration, is a classic sign of a loose or worn belt slipping on its pulleys.
- Visible Damage: A visual inspection can tell you a lot. Look for cracks, fraying, missing chunks of rubber, or a shiny, glazed appearance on the belt's surface. Any of these mean the belt's integrity is compromised and it's time for a replacement.
- Accessory Problems: If your battery isn't charging (check the ammeter) or the engine temperature starts to climb, a slipping or broken belt is a likely cause. This is because the belt can no longer effectively turn the generator or water pump.
Choosing the Right Aftermarket Belt
Original Studebaker-branded belts are collector's items (New Old Stock) and are not recommended for use. The rubber on a 60-year-old belt will be brittle and unreliable. Modern aftermarket belts are made with superior rubber compounds that last longer and perform better.
For the 1958 3E7, both Continental and Gates are excellent, top-tier choices. Both are reputable manufacturers with a long history of making quality products. In classic vehicle communities, there is no strong consensus that one is better than the other; both are considered reliable options. NAPA-branded belts are also a good choice and are often manufactured by Gates.
The most common mistake is ordering the wrong size belt. Your 3E7 could have multiple belts, especially if it has power steering. Always measure your old belts or check part numbers carefully to ensure you get the correct length for each accessory loop (e.g., Fan & Generator, Power Steering).
Accessory Drive Belt Cost
| Item | Estimated Cost |
|---|---|
| New Aftermarket Belt (Continental, Gates) | $7.35 - $33.48 |
| Shop Labor | $50 - $100 |
Frequently Asked Questions (FAQ)
Can I replace the accessory belts myself?
Yes, absolutely. Replacing the V-belts on a 1958 Studebaker is a very straightforward job for a home mechanic. Access is generally open, and the process involves loosening the bolts on an accessory (usually the generator), pivoting it to release tension, swapping the belt, and then re-tensioning. No special tools are needed beyond a basic wrench set.
How do I know which belt I need?
Your truck may have more than one belt. There is a primary belt for the fan and generator, and if you have power steering, there will be a separate belt for that pump. It is critical to identify which belt you are replacing. If you can't find a part number on the old belt, the best method is to carefully measure its outside circumference.
Is a modern Gates or Continental belt better than the original?
Yes. While an original "New Old Stock" Studebaker belt is a neat piece of history, its rubber has likely become hard and brittle over the decades. A new belt from a brand like Gates or Continental is made with modern EPDM rubber compounds that are far more resistant to heat, oil, and cracking. It will be more reliable and last much longer.
How tight should the new belt be?
Proper tension is important. Too loose, and the belt will slip and squeal. Too tight, and you can cause damage to the bearings inside your generator or water pump. A good rule of thumb is to press on the belt at the midpoint of its longest span; you should be able to deflect it about half an inch with firm finger pressure.
Are there any recalls for the 1958 Studebaker 3E7 drive belt?
No. There are no recalls from the National Highway Traffic Safety Administration (NHTSA) for this part. Recalls for individual components on vehicles from this era were not standard practice, and the NHTSA database was established much later.
Technical Specifications
This vehicle uses one or more V-belts. Belt lengths vary based on accessories. The primary belt for the fan and generator is approximately 59 3/4 inches in outer circumference. A separate, shorter belt is used for trucks equipped with an Eaton power steering pump. Always verify the required length for your specific setup.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.