What is the bolt pattern on a 1989 Chevy S-10?
The bolt pattern on a 1989 Chevy S-10 is a five-lug arrangement on a 4.75-inch circle (often written as 5x4.75 or 5x120.65 mm).
In other words, it uses five studs spaced around a hub circle with a diameter of 4.75 inches. This is a common GM pattern for S-series trucks of that era, including the S-10 pickup and the S-10 Blazer. This article explains what that pattern means for wheel choices, compatibility with other GM models, and how to verify fit when shopping for wheels.
Understanding the bolt pattern
What the numbers mean when you see 5x4.75: five lugs and a 4.75-inch bolt circle, which determines whether a wheel will mount on the hub and mate with the brake components.
- Five lug studs (five-bolt pattern).
- Bolt circle diameter: 4.75 inches (120.65 mm).
- Shared by many GM S-series vehicles of the era (S-10 pickup and Blazer) and other GM compact trucks.
- Most aftermarket wheels are offered in 5x4.75" or 5x120.65 mm; always verify center bore and offset in addition to the pattern.
When considering replacement wheels, the key is ensuring the wheel's lug pattern matches the hub, and that other factors like center bore and offset will not cause clearance issues.
Compatibility considerations
Before choosing wheels or adapters, review these compatibility points that commonly affect fit and safety.
- Direct-fit wheels require 5x4.75" bolt pattern; otherwise, adapters or different wheels are necessary.
- Center bore and hub-centric design vary; hub rings may be needed to center the wheel properly on the hub.
- Wheel offset and brake/caliper clearance vary by wheel design; confirm with the wheel manufacturer or a tire shop.
- Mixing different bolt patterns or using improper adapters can affect handling and safety; avoid makeshift solutions.
For precise fit, consult the factory service information for your exact vehicle (two-wheel drive or four-wheel drive) and the specific wheel model you want to install.
Wheel options and installation tips
The following guidelines help ensure a safe installation when selecting wheels for the S-10.
- Choose wheels labeled 5x4.75" (5x120.65 mm) for direct compatibility.
- Check the wheel’s center bore; use hub-centric rings if the wheel’s bore is larger than the hub.
- Verify offset (ET) and ensure adequate clearance to brakes, control arms, and fenders.
- Only use adapters or different bolt patterns if recommended by a professional and designed for this purpose.
With the right wheel configuration, the 1989 S-10 can maintain safe handling and maintain the period-correct look while accommodating modern tires.
Summary
For a 1989 Chevy S-10, the wheel bolt pattern is 5x4.75" (five lugs on a 4.75-inch circle). When shopping wheels, verify 5x4.75" fitment, center bore compatibility, and appropriate offset to ensure proper seating, clearance, and safety. This pattern is common across GM's S-series trucks of that era, simplifying replacements and compatibility with many aftermarket options.
What is the bolt pattern on a 1989 Chevy S10?
The 1989 Chevy S10 has a 5x4.75-inch (or 5x120.65mm) bolt pattern. This means the wheel has five lug holes, and the distance between them is 4.75 inches or 120.65 millimeters.
This video explains the bolt pattern of S10s and Blazers and mentions wheels that fit: 49sModJunkieYouTube · Mar 23, 2016
- Bolt Pattern: 5x4.75" or 5x120.65mm
- Details: The pattern is the same for both 2WD and 4WD models.
- Important Note: While the bolt pattern is 5x4.75, always double-check the wheel's offset and center bore to ensure a perfect fit.
What lug pattern is a 89 Chevy?
5 lug 5 inch
Finance your Chevrolet Wheels
| YEAR | MAKE | COMMENTS |
|---|---|---|
| 1989 | Chevrolet | 5 lug 5 inch or 127 mm Standard Offset |
| 1990 | Chevrolet | 5 lug 5 inch or 127 mm Standard Offset |
| 1991 | Chevrolet | 5 lug 5 inch or 127 mm Standard Offset |
| 1992 | Chevrolet | 5 lug 5 inch or 127 mm Standard Offset |
What does the 4x108 bolt pattern fit?
The 4x108 bolt pattern is commonly used by vehicle brands such as Mazda, Ford, Saab, Mercury, Volvo, and many more. Wheel sizes that we carry for this bolt pattern are 15, 16, 17, and 18-inch wheels. Our large selection of wheel finishes, designs, and colors can help you truly customize your vehicle.
What is the Chevy S10 bolt pattern?
The S10 bolt pattern varies by generation, but is typically 5x120.65 mm (5×4.755 cross 4.755×4.75 inches) for most models from 1982 up to 2004. Later models, particularly the 2000s Brazilian-built S10s and other international variants, often use a 6x139.7 mm (6×5.56 cross 5.56×5.5 inches) bolt pattern. Always verify the specific bolt pattern for your truck's year and model before purchasing wheels.
This video explains the S10 and Blazer bolt patterns: 49sModJunkieYouTube · Mar 23, 2016
Common S10 bolt patterns by year
- 1982–2004: The most common bolt pattern is 5x120.65 mm (5×4.755 cross 4.755×4.75 inches).
- 2001–2012: This generation commonly uses the 5x120.65 mm bolt pattern.
- 2012–2024: Some Brazilian-built S10s and other international models use a 6x139.7 mm (6×5.56 cross 5.56×5.5 inches) bolt pattern.
