GM 1396838 Riviera Nos Cv Joint Kit

( Brand: Gm ), ( Manufacturer Part Number: 1396838 ), ( Part Type: Cv Joint ), ( Vintage Part: Yes ), ( Country Of Origin: United States )

Review GM Buick Riviera Nos Cv Joint Kit fits LESABRE WILDCAT ELECTRA 1966–1968

The **GM 1396838 Universal CV (Constant Velocity) Joint Kit** is a meticulously engineered aftermarket replacement designed to restore peak performance and reliability to the iconic **1966 1968 Buick LeSabre, Wildcat, Electra, and Riviera** models equipped with the legendary **Norton Automatic Transmission** and its distinctive **positive displacement hydraulic torque converter**. This kit is specifically tailored to address the critical wear and tear experienced by the **front and rear CV joints** in these classic American muscle cars, which were originally fitted with **GM s proprietary 1396838-style joints** a hallmark of the era s engineering prowess. Crafted from high-grade **chromoly steel** and precision-machined to exacting tolerances, these joints feature **sealed ball-and-trough bearings** that ensure smooth, vibration-free power delivery from the transmission to the wheels, even under heavy loads or aggressive driving conditions. The kit includes **all necessary hardware**, including **grease fittings, snap rings, and retaining clips**, ensuring a seamless installation process for both the **front and rear driveshafts**, which were common points of failure in these models due to the demanding torque output of the **325 HP V8 engines** (such as the **425 CID Wildcat** or the **430 CID Turbo Fire**) paired with the Norton s robust yet finicky torque converter. Whether restoring a show-ready **Wildcat 425** or reviving a daily-driver **Electra Limited**, this kit is an indispensable upgrade for enthusiasts seeking to eliminate chronic CV joint noise, prevent premature driveshaft wear, and maintain the original vehicle s legendary **smooth, linear power band** a signature trait of Buick s mid-century engineering. Built to withstand the rigors of modern driving habits while preserving the authenticity of the original components, this **universal replacement kit** bridges the gap between vintage reliability and contemporary performance demands, making it an essential addition to any serious collector s restoration toolkit.

### **Pros and Cons of Buying a 1966 1968 Buick Electra/LeSabre/Wildcat with GM Part Number 1396838 (CV Joint Kit)**

#### **Overview of the Vehicle and Part**

The **1966 1968 Buick Electra, LeSabre, and Wildcat** models were part of General Motors mid-sized and full-sized luxury lineup, featuring powerful V8 engines (most commonly the **325, 365, or 401 ci** overhead-valve engines) and a reputation for comfort and performance. The **GM part number 1396838** refers to a **CV (constant velocity) joint kit**, typically used in the **rear axle** (though some models may have front CV joints in later applications). These joints are critical for smooth power delivery and handling, and wear is a common issue in older vehicles.

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### **Pros of Buying This Vehicle with the CV Joint Kit**

1. **Classic American Muscle and Luxury**

- These Buicks are iconic from the **American muscle car era**, offering a mix of **power, comfort, and vintage styling**.

- The **Electra** and **LeSabre** were full-size luxury sedans, while the **Wildcat** was a sporty coupe, appealing to enthusiasts who enjoy both **daily driving and weekend cruising**.

- Restored examples can be **highly desirable** in the classic car market, especially with original or well-maintained interiors.

2. **Strong Engine Options**

- The **325 ci (5.3L) and 365 ci (6.0L) engines** were reliable and produced **good power** (around **250 300 hp** in stock form).

- The **401 ci (6.6L) engine** (found in some 1968 models) was a **high-performance option**, capable of **over 300 hp** with modifications.

- These engines are **well-documented**, with **aftermarket support** for tuning, performance upgrades, and restoration.

3. **Durable Chassis and Suspension (When Properly Maintained)**

- The **unibody construction** (in later models) and **rigid frame** (in earlier ones) provided a **smooth ride** compared to many contemporaries.

- The **rear axle CV joints** (if in good condition) allow for **flexible power delivery**, reducing drivetrain stress.

- With **regular maintenance**, these vehicles can last **decades**, especially if kept in **garage conditions**.

4. **Strong Secondary Market and Restoration Potential**

- Buicks from this era are **not as common as Chevrolets or Fords**, making **well-preserved examples more valuable**.

- **Restoration projects** can be **rewarding**, with parts still available from **GM dealers, junkyards, and specialty suppliers**.

- **Meetup and show scene** is active, with **clubs like the Buick Club of America** supporting owners.

5. **Potential for Modifications and Performance Upgrades**

- **Engine swaps** (e.g., **LS V8, big-block Chevy, or even modern turbocharged setups**) are possible.

- **Suspension upgrades** (coilovers, poly bushings) can improve handling.

- **Modern electronics** (fuel injection, ECU tuning) can be retrofitted for better reliability and performance.

6. **Lower Running Costs (Compared to Modern Cars)**

- **Gasoline was cheaper in the 1960s**, so **fuel economy** (around **12 16 MPG**) is less of an issue today.

- **Basic maintenance** (oil changes, brake jobs, timing belt replacements) is **affordable** compared to modern vehicles.

- **Insurance costs** are often **lower** than for high-value modern cars.

---

### **Cons of Buying This Vehicle with the CV Joint Kit**

1. **High Maintenance Requirements**

- **Older engines** (especially the **325 and 365 ci**) are **prone to wear** **valve seals, head gaskets, and rod bearings** are common failure points.

- **Manual transmissions** (if equipped) can be **difficult to service** and may require **synchronizer adjustments**.

- **Electrical systems** (ignition, wiring, gauges) can be **fussy**, requiring **restoration or replacement**.

2. **CV Joint Wear and Drivetrain Issues**

- The **GM 1396838 CV joint kit** is a **critical repair** if the joint is **already failing**, it may indicate **other drivetrain problems** (axle seals, differential issues).

- **Rear-wheel drive** systems from this era can be **less forgiving** than modern FWD/AWD setups, meaning **more frequent inspections** are needed.

- **Universal joints (U-joints) in the driveshaft** can also **wear out**, requiring **additional repairs**.

3. **Rust and Structural Corrosion**

- Many **1960s Buicks** suffered from **poor rust protection**, especially in **frame rails, wheel wells, and floor pans**.

- **Full rust repairs** can be **expensive**, requiring **welding, replacement sections, or undercoating**.

- **Body panels** (especially on the **Electra s long hood**) may need **replacement or extensive touch-up work**.

4. **Fuel and Emissions Compliance Issues**

- **Modern emissions standards** make **modifying or running these cars** (especially in **California**) **difficult**.

- **Smog checks** (in states that require them) can be **pass/fail** some may need **exhaust modifications or catalytic converter replacements**.

- **Fuel quality** (modern gas has **higher ethanol content**) can **damage older carburetors and fuel systems**.

5. **Parts Availability and Costs**

- While **basic parts** (bolts, bearings, gaskets) are still **relatively easy to find**, **rare or original parts** (e.g., **specific trim pieces, gauges, or wiring harnesses**) can be **expensive or hard to locate**.

- **Aftermarket support** exists, but **not as robust** as for more modern GM vehicles.

- **Labor costs** for **classic car repairs** can be **high** if a specialist is needed.

6. **Insurance and Legal Restrictions**

- **Classic car insurance** is **more expensive** than standard auto insurance, especially for **high-value restored models**.

- **Some states have restrictions** on **pre-1975 vehicles**, including **headlight requirements, turn signal laws, or emissions testing**.

- **Roadside assistance** may not cover **classic cars**, requiring **personal preparation** for breakdowns.

7. **Driving Experience Limitations**

- **Modern safety features** (airbags, ABS, traction control) are **missing**, making **high-speed driving less safe**.

- **Heating and cooling systems** (especially in **older models**) can be **less efficient** in extreme weather.

- **Noise and vibration** (from worn suspension, tires, or drivetrain) can make **long drives less comfortable**.

8. **Depreciation and Resale Value**

- **Classic cars appreciate over time**, but **only if well-maintained**.

- **Poorly restored or neglected examples** can **lose value quickly**.

- **Market fluctuations** mean that **resale prices are not guaranteed**, unlike newer vehicles with stable depreciation.

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### **Conclusion and Recommendation**

- **Enthusiasts who enjoy restoration projects** and don t mind **ongoing maintenance**.

- **Owners who prioritize **driving experience and nostalgia** over modern convenience.

- **Those with mechanical skills** (or access to a trusted mechanic) who can **address wear-and-tear issues**.

- **People who plan to keep the car for **long-term enjoyment** rather than resale.

- **Budget-conscious buyers** who are willing to **invest time and money** into **bringing it back to peak condition**.

- **First-time car buyers** who prefer **low-maintenance, reliable daily drivers**.

- **Those who want **modern safety, fuel efficiency, or tech features**.

- **People who cannot commit to **regular upkeep** (oil changes, fluid checks, rust prevention).

- **Buyers in areas with **harsh winters** (salt corrosion accelerates rust).

- **Those who need **insurance flexibility** (classic car policies can be restrictive).

1. **Inspect Thoroughly Before Purchase**

- **Check the CV joints, U-joints, and driveshaft** for **play or leaks**.

- **Test the engine** for **compression, leaks, and smooth operation**.

- **Look for rust** in **critical areas** (frame, subframe, suspension).

- **Verify transmission and differential** for **fluid condition and wear**.

2. **Budget for Restoration**

- **Expect to spend **$

Details:

1966-1968 Buick LeSabre Wildcat Electra Riviera NOS cv joint kit 1396838: genuine GM constant velocity repair kit, part number 1396838.This fits 1966 - 1968 LeSabre, Wildcat, and Riviera.Brand new, still in original box, never installed.

part #: 1396838 price

• $79.99

specifications universajoin:

• for models: Lesabre, Wildcat, Electra
• for makes: Buick
• for years: 1966-1968
• brand: Gm
• mpn: 1396838
• part type: Cv Joint
• vintage part: Yes
• country of origin: United States

seller universajoin:

• city: Toledo, Ohio
• # reviews: 19244
• rating: 100.0%

returns universajoin:

• policy: No Returns

payments universajoin:

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

shipping universajoin:

• carrier: USPS
• cost: $12.95
• type: Calculated
• transit: 8-13 Days
• class: Standard
• service: USPS First Class

general universajoin:

• Transmission Drivetrain > Driveshafts Parts > Driveshaft Bearings U-Joints
• condition: Used

offer universajoin:

• quantity: 1
• started: May 31, 2026
• sold: 0
• availability: In Stock
• options: Ship-to-home

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