fits model: C1500, C2500, K1500, Lt, Blazer. make: Chevrolet. year: 1988–1999.

( Brand: Rareelectrical ), ( Manufacturer Part Number: AC15529595-2Z8 ), ( Type: Axle U Bolt ), ( Source: Aftermarket ), ( Country Of Origin: Taiwan ), ( California Prop 65 Warning: This Product May Expose You To Chemicals Which Are Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. For More Information Go To Www.p65warnings.ca.gov )
The **AC15529595-2Z8 Rear Axle Bolt** is a precision-engineered, high-strength fastener specifically designed for the rear axle assemblies of **1988 through 1999 Chevrolet Blazer, C1500, C2500, and K1500 models**, particularly those equipped with the **LS (Long-Spin) rear axle housing**. This bolt plays a critical role in securing the axle shaft flange to the differential housing, ensuring optimal torque distribution, alignment, and structural integrity under heavy loads, towing, and off-road conditions. Crafted from **high-grade alloy steel**, this bolt is heat-treated to achieve an exceptional tensile strength, typically exceeding **120,000 PSI**, while also featuring a **fine-threaded design** for precise engagement with the axle housing threads. The bolt is equipped with a **smooth, polished finish** to prevent galling and corrosion, making it resistant to the harsh environments encountered in both on-road and off-road applications. Its **hex head** is designed for easy installation and removal with a standard **19mm socket**, though care must be taken to avoid overtightening, as these bolts are intended for a **specific torque specification** (typically around **100-120 ft-lbs**) to prevent stripping or deformation. This bolt is a **direct-fit replacement**, ensuring compatibility with the original equipment manufacturer (OEM) design, and is often used in axle repairs, rebuilds, or upgrades where durability and reliability are paramount. Whether restoring a classic Blazer, maintaining a workhorse C1500, or upgrading a K1500 for heavy-duty towing, this bolt guarantees a secure and long-lasting connection, helping to preserve the structural integrity of the rear axle system. Always verify fitment and torque specifications before installation to ensure optimal performance and safety.
### **Pros and Cons of buying a AC15529595 Rear Axle Bolt (1988-1999 Chevrolet Blazer, C1500, C2500, K1500 LS)**
#### **Pros:**1. **Direct Fitment** This bolt is specifically designed for the 1988-1999 Chevrolet Blazer, C1500, C2500, and K1500 models with the LS (Long-Span) rear axle. It ensures compatibility without modification, reducing the risk of improper installation.
2. **High-Quality Material** The bolt is likely made from high-strength steel, which provides durability and resistance to wear, especially in heavy-duty applications like trucks and SUVs.
3. **Prevents Axle Shaft Separation** The rear axle bolts secure the axle shafts to the axle housing, preventing catastrophic failure, which could lead to loss of control or vehicle damage.
4. **Easy Replacement** Since it s a standard replacement part, it can be installed with basic tools, making it a straightforward DIY project for those with mechanical experience.
5. **Cost-Effective** Compared to full axle replacements or major repairs, replacing a single bolt (or a set) is relatively inexpensive, saving money on labor and parts.
6. **Warranty Coverage** If purchased from a reputable dealer or manufacturer, it may come with a warranty, offering peace of mind against defects.
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#### **Cons:**1. **Potential for Counterfeit Parts** Some aftermarket parts, especially those from unknown sellers, may be counterfeit or substandard. This could lead to premature failure or poor performance.
2. **Corrosion Risk** If the bolt is not properly treated or stored, it may rust over time, especially in wet or harsh environments. This could make removal difficult later.
3. **Installation Challenges** If the bolt is seized due to rust or over-tightening, removing it may require specialized tools (e.g., penetrating oil, bolt cutters, or a press). Improper removal could damage the threads or housing.
4. **Limited Availability** Depending on the source, finding an authentic AC15529595 bolt may be difficult, particularly if the seller is not a trusted parts supplier or dealership.
5. **Misapplication Risk** If the bolt is not the correct size or grade for the application, it could fail under load, leading to serious safety hazards.
6. **No Guarantee of Original Specifications** Even if the part is genuine, wear or damage to the threads in the axle housing could affect performance, requiring additional maintenance.
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### **Conclusion:**The **AC15529595 rear axle bolt** is a critical and relatively inexpensive part that ensures the structural integrity of your Chevrolet Blazer or full-size truck. Its primary advantage lies in its **direct fitment and durability**, making it a practical choice for maintenance or replacement. However, **quality and authenticity** are key concerns purchasing from a reputable supplier (such as a dealership, OEM parts distributor, or trusted online retailer) minimizes risks.
If you re experiencing **loose or missing bolts**, **axle vibration**, or **squeaking noises**, replacing them promptly is advisable to prevent axle shaft separation. For those comfortable with basic mechanical work, this is a manageable repair. If unsure, consulting a professional mechanic is recommended to avoid improper installation.
### **Recommendation:**- **Buy from a trusted source** (e.g., RockAuto, local dealership, or an established online retailer) to ensure authenticity and quality.
- **Inspect the threads** in the axle housing before installation to confirm they are undamaged.
- **Use proper lubrication** (e.g., anti-seize compound) during installation to prevent future corrosion.
- **Follow torque specifications** (typically around **100-120 ft-lbs** for these bolts) to avoid overtightening or loosening.
- **Consider a full axle bolt set** if multiple bolts are worn or missing, as they often come as a kit for convenience.
For long-term reliability, **regularly check axle bolts** during maintenance intervals, especially in high-mileage or heavy-duty vehicles. If in doubt about the part s condition or installation, seek professional assistance.
As a parts distributor we mostly sell aftermarket any OEM would be noted as such. All parts sold are new. Rear Axle U Bolt 1988 1999 Chevrolet Blazer C1500 C2500 K1500 LS AC15529595: Replaces Part Numbers Specifications. RAREELECTRICAL products, when properly installed, are warranted against defects in materials and workmanship to the original purchaser for a period of one 1 year from date purchase.
Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but designed to function same as - if better than.: AXLE U BOLT, SPECIFICATIONS: POSITION: REAR, REPLACES: MANUFACTURER PART NUMBER: AC15529595, Product Notice. Warranty does not cover failure due to accident, abuse, neglect or as the result of normal wear.