GM TRUCKS AA7B Rear Drive Shaft Box 5.3L 5FT

( Brand: Gm Trucks ), ( Manufacturer Part Number: AA7B ), ( Type: Rear ), ( Placement On Vehicle: Lower, Rear ), ( Transmission Type: Automatic ), ( Performance Part: No ), ( Id: A1bd3aab-c6c1-4479-9837-9e057eb61b14 ), ( Interchange: 431-6096 ), ( Year: 17 )

Review GM TRUCKS Chevy Rear Drive Shaft Cab 5.3l 5ft Inch Box fits SILVERADO CREW 1500 4X4 2014–2019

The **GM AA7B Rear Drive Shaft (2014-2019 Chevrolet Silverado 1500 4x4 Crew Cab, 5.3L V8)** is a precision-engineered, high-performance drivetrain component designed exclusively for the rugged demands of full-size Chevrolet trucks. This **5-foot (60-inch) shaft** is a direct replacement for the original equipment (OEM) assembly, ensuring seamless compatibility with the 5.3L V8 engine paired with the 6L80 or 6L90 6-speed automatic transmission in the 4x4 Crew Cab Silverado 1500. Crafted from **high-strength, heat-treated alloy steel**, the shaft is built to withstand the extreme torque output of the LS engine family while maintaining durability under heavy loads, off-road conditions, or towing applications. The **AA7B designation** confirms its fitment for the **2014 through 2019 model years**, accommodating the specific CV joint angles and axle spacing required by this generation of trucks. The shaft features **spiral-bevel CV joints** at both ends, providing smooth power transfer even at extreme articulation angles, which is critical for 4x4 operation and off-road maneuverability. The **sleeve-type construction** ensures proper lubrication retention, reducing wear and extending service life, while the **black powder-coated finish** protects against corrosion, making it ideal for vehicles exposed to harsh environments or frequent washing. Whether used for routine maintenance, performance upgrades, or off-road modifications, this drive shaft delivers the reliability and strength needed to keep your Silverado 1500 running smoothly, mile after mile.

### **Pros and Cons of Buying a 2014 2019 GM AA7B 2.5" Rear Drive Shaft 4x4 Chevy Silverado 1500 Crew Cab with a 5.3L V8**

1. **Reliability of the 5.3L V8** The LS3-based 5.3L engine (in 2014 2019 models) is known for its durability, especially when properly maintained. It handles high torque well and is less prone to catastrophic failure compared to some smaller engines.

2. **Strong Towing and Hauling Capability** The 5.3L V8 produces **364 410 hp** and **390 417 lb-ft of torque**, making it suitable for moderate to heavy towing (up to **9,000 10,000 lbs** with proper equipment). The 4x4 system provides better off-road and snow traction.

3. **Proven 4x4 System** The **ZF 6-speed automatic transmission** paired with the **4L65-E or 6L90 transmission** (depending on year) is robust and handles the 4x4 engagement well. The rear drive shaft (AA7B) is a common, well-supported component with available aftermarket parts.

4. **Spacious Crew Cab Interior** The crew cab offers **five seats** with decent legroom, making it practical for families or work-related trips. The cargo space is also generous for a full-size truck.

5. **Available Aftermarket Support** The Silverado 1500 is a popular truck, meaning **aftermarket parts, upgrades, and tuning options** (e.g., cold air intakes, exhaust systems, suspension lifts) are widely available.

6. **Good Resale Value** Compared to some competitors, the Silverado retains its value reasonably well, especially if well-maintained.

7. **Durable Build Quality** GM s frame and body structure are generally sturdy, and the **unibody construction** (in later models) improves ride comfort and handling.

8. **Fuel Economy (Compared to V8s)** While not great (around **14 16 MPG combined**), it s better than some larger V8 trucks and still adequate for many drivers.

---

1. **Transmission Issues (Especially 6L90 in 2017 Models)** The **6L90 automatic transmission** (introduced in 2017) has had **reported problems with rough shifting, delayed engagement, and premature wear**. The **4L65-E (pre-2017)** is more reliable but still not perfect. A transmission rebuild or replacement may be needed if not maintained properly.

2. **Rear Drive Shaft (AA7B) Wear Concerns** The **rear drive shaft** in 4x4 trucks can wear out over time, especially if the vehicle is driven hard or off-road frequently. **Universal joints (U-joints) and CV joints** may need replacement every **80,000 120,000 miles**, depending on conditions. A **pre-purchase inspection (PPI)** is strongly recommended to check for **play, noise, or damage**.

3. **5.3L Engine Maintenance Needs** While durable, the **5.3L requires regular oil changes (every 5,000 7,500 miles in severe conditions)** to prevent sludge buildup. **Timing chain stretch** can occur over time, leading to **knocking or poor performance**. Some owners report **oil leaks from valve cover gaskets or oil pan gaskets**.

4. **Suspension Wear** The **front coil springs and rear leaf springs** (or air suspension in some models) can wear out, leading to **rough rides or handling issues**. **Control arm bushings and sway bar links** may also need replacement.

5. **Electrical and Infotainment Glitches** The **MyLink infotainment system** (especially in 2014 2016) has had **software bugs and connectivity issues**. Some owners report **radio failure, Bluetooth problems, or sensor malfunctions**.

6. **Rust Concerns (Especially in Snow Belt Regions)** If the truck was driven in **salted roads or humid climates**, **underbody rust** (especially around the **wheel wells, frame rails, and rear axle**) can be a major issue. A thorough inspection is necessary.

7. **Higher Maintenance Costs Than Smaller Trucks** Due to its size and complexity, **repairs (transmission, drivetrain, suspension) can be expensive** compared to smaller trucks or SUVs.

8. **Fuel Efficiency is Poor** At ** 14 16 MPG combined**, it s not ideal for daily commuting or long-distance driving. Diesel or turbocharged alternatives may be more efficient for some use cases.

9. **Limited Off-Road Capability (Stock)** While the **4x4 system works**, the **stock suspension and tires are not designed for serious off-roading**. Modifications (lifts, locking differentials, skid plates) may be needed for rough terrain.

10. **Recall and Warranty Issues** Some **2014 2019 Silverados** had **recalls for transmission issues, fuel pump failures, and electrical problems**. Checking the **NHTSA recall database** is wise before purchasing.

---

- **Transmission History** Ask for **service records**, especially for **transmission fluid changes**. A **transmission flush/rebuild** may be needed if fluids were never changed.

- **Drive Shaft Inspection** Have a mechanic check for **U-joint wear, grease leaks, or excessive play** in the rear drive shaft.

- **Underbody Rust** Look for **corrosion in wheel wells, frame rails, and rear axle area**.

- **Engine Condition** Check for **oil leaks, unusual noises (knocking, ticking), or poor performance**.

- **Suspension & Steering** Test for **clunks, uneven tire wear, or excessive play in bushings**.

- **Test Drive** Ensure **smooth shifting, no jerking in 4x4 mode, and proper braking**.

---

You **need a reliable, high-torque truck** for **towing, hauling, or light off-roading**.

You **plan to maintain it properly** (regular oil changes, transmission service, drive shaft inspections).

You **find a well-documented vehicle** with **clean service records** and **no major rust or mechanical issues**.

You **budget for potential future repairs** (transmission, suspension, drivetrain).

The **transmission has poor history** (no fluid changes, rough shifting).

The **rear drive shaft shows significant wear** (noise, leaks, play).

The **vehicle has extensive rust** (especially underbody).

The **seller cannot provide maintenance records** or refuses a **pre-purchase inspection**.

---

- **Get a pre-purchase inspection (PPI)** from a **trusted mechanic** specializing in GM trucks.

- **Check for recalls** and ensure they were addressed.

- **Negotiate price based on mileage, condition, and service history** expect to pay **$15,000 $25,000** depending on year, mileage, and condition.

- **Consider a used certified pre-owned (CPO) model** if available, as they often come with warranties.

- **2015 2019 Ford F-150 5.0L V8** (similar power, slightly better transmission reliability in some years).

- **2017 Ram 1500 3.6L Pentastar V6** (better fuel economy, but less towing power).

- **Used Diesel (Duramax, Cummins)** if towing is a priority and you want better MPG.

**Bottom Line:** The **2014 2019 Silverado 1500 4x4 with a 5.3L V8 can be a great buy if properly vetted**, but **transmission and drivetrain health must be confirmed**. If you re comfortable with maintenance and inspections, it s a solid workhorse truck. If not, consider alternatives with better long-term reliability.

Details:

Vehicle Info. Model: CHEVY SILVERADO 1500. Vehicle Stock #: A820. Part Stock #.

90-day standard warranty on engines and transmissions.

part #: aa7b prices

• $378.00-$897.89

specifications universajoin:

• for models: 1500, 4x4, Silverado, Crew
• for makes: Chevy
• for years: 2014-2019
• brand: Gm Trucks
• mpn: Aa7b
• type: Rear
• placement on vehicle: Lower, Rear
• transmission type: Automatic
• performance part: No
• id: A1bd3aab-c6c1-4479-9837-9e057eb61b14
• interchange: 431-6096
• year: 17

shipping universajoin:

seller universajoin:

• # reviews: 1347
• rating: 99.9%
• city: Montebello, California

offer universajoin:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: March 12, 2026
• quantity: 1

payments universajoin:

• wallet: Google-pay
• other
• credit card: Visa

returns universajoin:

• time: 30 Days
• paid by: Buyer
• policy: Returns Accepted

general universajoin:

• condition: Used
• Transmission Drivetrain > Driveshafts Parts > Driveshafts

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