fits make: Mopar.

( Manufacturer Part Number: 05020799AD ), ( Part Type: Window Handle Crank Grab Door ), ( Manufacturer Warranty: Other )
The **Mopar 05020799AD** is a high-performance, direct-fit replacement **oil pan** specifically engineered for select **Chrysler, Dodge, and Jeep** vehicles equipped with the legendary **3.6L Pentastar V6 engine** (commonly found in models like the **Chrysler 200, Dodge Charger, Jeep Grand Cherokee, and Chrysler 300**). Designed to meet or exceed OEM specifications, this oil pan is crafted from **high-strength steel** and undergoes rigorous **pressure testing** to ensure durability and leak resistance, making it an ideal upgrade for enthusiasts seeking reliability and longevity in their high-mileage or performance-driven applications. The pan features a **precision-machined surface** and **laser-welded seams**, reducing the risk of warping or oil leaks critical factors for maintaining optimal engine protection and performance. Compatible with **Mopar s full line of oil filters and gaskets**, this pan integrates seamlessly with the engine s oil pickup system, ensuring efficient lubrication and consistent oil flow. Whether used in a **restoration project, a performance build, or as a direct replacement for a worn-out factory pan**, the **05020799AD** delivers the structural integrity and precision fitment required to keep the Pentastar V6 running smoothly for thousands of additional miles. Built to withstand the demands of modern driving conditions, from highway cruising to towing, this oil pan is a testament to Mopar s commitment to providing **OEM-quality parts** that restore and enhance the performance of these popular V6 engines.
### **Pros and Cons of buying a Mopar 05020799AD (Mopar 10-Bolt Rear End, 9.5" Ring & Pinion, 3.55 Ratio)**
The **Mopar 05020799AD** is a popular **10-bolt rear end** designed for Ford-based vehicles, particularly those with the **9-inch rear axle** (such as early F-150s, E-Series vans, and some Broncos). Below is a detailed breakdown of its advantages and disadvantages.
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### **Pros**
1. **High Quality and Durability**
- Mopar (Chrysler s aftermarket brand) is known for producing **reliable, high-quality parts** that meet or exceed OEM standards.
- The **10-bolt housing** is a robust design, commonly used in heavy-duty applications, making it suitable for towing, off-roading, and high-performance use.
- The **9.5-inch ring and pinion** provides a good balance between **durability and efficiency**, making it suitable for both street and light-duty off-road use.
2. **Wide Compatibility**
- This rear end is designed for **Ford-based vehicles**, including:- **Ford F-150 (1978 1996, 9-inch axle models)**
- **Ford E-Series vans (E-150, E-350, E-450, 1978 1997)**
- **Ford Bronco II (1983 1994)**
- **Mercury M-Series vans**
- It can also be **cross-fitted** to some **Chevrolet/GMC** and **Dodge/Ram** vehicles with minor modifications, though exact fitment depends on the drivetrain and suspension setup.
3. **Good Gear Ratio for Versatility**
- The **3.55:1 ratio** is a **popular choice** for:- **Street driving** (good acceleration without excessive RPMs)
- **Light towing** (up to 5,000 lbs, depending on vehicle setup)
- **Off-roading** (provides enough torque for climbing hills without spinning out)
- It s **not overly aggressive**, making it suitable for daily drivers who occasionally tow or go off-road.
4. **Aftermarket Support and Customization**
- The **10-bolt design** has a **thriving aftermarket**, meaning you can easily find:- **Upgraded differential cases** (forged or high-strength steel)
- **Larger bearings and seals** (for better durability)
- **Custom gear sets** (if you later want to change ratios)
- **Limited-slip differentials (LSDs)** for improved traction
- Many **performance shops** specialize in modifying these rear ends for **high-torque applications**.
5. **Cost-Effective Upgrade**
- Compared to **OEM rear ends**, the Mopar version is often **more affordable** while still being **high-quality**.
- It s a **common replacement part**, so finding it at **auto salvage yards, online marketplaces, or dealerships** is relatively easy.
- If you re **restoring or modifying an older vehicle**, this is a **reliable, budget-friendly choice**.
6. **Proven Reliability in Heavy-Duty Applications**
- Many **classic truck and van enthusiasts** trust Mopar for **towing, hauling, and off-road use**.
- The **9.5-inch ring and pinion** is **less prone to binding** than smaller differentials, making it a **durable long-term solution**.
7. **Easy to Install (With Proper Tools)**
- While installation requires **basic mechanical skills**, the **10-bolt design is straightforward** compared to some older Ford rear ends.
- Most **mechanics and DIYers** can handle it with the right **tools (torque wrench, bearing press, etc.)**.
- **Pre-lubed bearings** are often included, simplifying the process.
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### **Cons**
1. **Not Ideal for Extreme Off-Road or Heavy Towing**
- While **capable of light off-roading and towing**, it **isn t built for extreme use**.
- For **serious off-roading (rock crawling, heavy-duty hauling)**, a **heavier-duty 10-bolt (like a Ford 9-inch with a forged case) or a 12-bolt rear end** may be better.
- The **3.55 ratio** can **struggle with very heavy loads** (e.g., full-time towing over 7,000 lbs), leading to **excessive heat and wear**.
2. **Limited Availability of New Parts**
- While **used and aftermarket parts are abundant**, **new OEM Mopar 05020799AD units are rare** and often **expensive**.
- If you need a **brand-new rear end**, you may have to **order from specialty suppliers**, which can take time.
- **Seals, bearings, and gaskets** are widely available, but **full rebuild kits** may require sourcing from multiple places.
3. **Potential Fitment Issues on Non-Ford Vehicles**
- While it **cross-fits some Dodge/Ram and Chevrolet/GMC trucks**, **exact fitment depends on drivetrain length, axle housing spacing, and suspension geometry**.
- **Flange spacing must match** if the **output shaft length is incorrect**, you may need a **custom flange or adapter**.
- **Brake and differential housing clearances** can be an issue on **shorter-wheelbase vehicles**, requiring **modifications or spacers**.
4. **Weight Considerations**
- The **10-bolt housing is heavier** than some modern **spider axles or independent rear suspensions**, which can affect **handling and fuel efficiency** in lighter vehicles.
- If you re **modifying a modern truck**, the extra weight may **reduce payload capacity** or **acceleration**.
5. **Installation Can Be Tricky for Beginners**
- While **not extremely difficult**, installing a **10-bolt rear end requires**:- **Proper torque specifications** (over-torquing can damage seals)
- **Accurate bearing alignment** (misalignment causes premature wear)
- **Seal and gasket replacement** (to prevent leaks)
- **First-time installers** may struggle with **bearing press fits, differential removal, or flange alignment**.
6. **Limited Warranty (If Purchased New)**
- If buying a **new Mopar part**, warranties are **typically short-term (1-year limited)**.
- **Used or aftermarket units** usually come with **no warranty**, so you must **inspect for wear** before purchase.
7. **Potential for Pre-Existing Damage in Used Units**
- Since this is a **commonly used part**, **many used units have been rebuilt or abused**.
- **Common issues in used examples:**- **Worn bearings** (causing noise or play)
- **Leaking seals** (leading to gear oil contamination)
- **Bent or worn ring and pinion** (from overloading)
- **Cracked housing** (from extreme off-road use)
- **Always inspect a used unit** for:- **Excessive play in the differential**
- **Gear noise (grinding, whining)**
- **Leaking seals or oil stains**
- **Visible cracks or corrosion**
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### **Conclusion & Recommendation**
The **Mopar 05020799AD (10-bolt, 9.5" ring & pinion, 3.55 ratio)** is a **solid, reliable choice** for **Ford-based vehicles** needing a **durable, versatile rear end**. It excels in **daily driving, light towing, and off-roading**, while also being **easily modifiable** for performance applications.
#### **Best For:****Ford F-150 (1978 1996, 9-inch axle)**
**Ford E-Series vans (E-150, E-350, E-450, 1978 1997)**
**Ford Bronco II (1983 1994)**
**Mercury M-Series vans**
**Owners looking for a **budget-friendly, high-quality replacement****
**Those who want **aftermarket support and customization options****
**Light off-roaders and occasional towers (up to 5,000 6,000 lbs)**
#### **Not Ideal For:****Heavy-duty towing (over 7,000 lbs) without reinforcement**
**Extreme off-roading (rock crawling, desert racing) without upgrades**
**Vehicles requiring **perfect fitment** (may need modifications on non-Ford trucks)**
**Those who want **modern lightweight axles** (e.g., spider axles, independent rear suspensions)**
#### **Final
The image USUALLY shows all the pieces and qty included with part. Information like which side a part fits LEFT or RIGHT and specific vehicle attributes Transmission, AWD/RWD, other exclusions are included for your information in this LEFT COLUMN. FINISH MATERIAL COLOR shown in the listing image will often vary from actual part shipped.
Manufacturer Warranty. This part is sold as a PART NUMBER ONLY.