1. Automatic Transmissions Products
  2. sku: 23691219541742602
  3. ALLISON 6310835991

ALLISON 6310835991 Rv Trans Brake 400.ZZ4908 69K 1000MH S/n

fits make: Allison. year: 2008.

6310835991 Allison Used 69k 2008 1000mh Rv Trans W E Brake S/n Shipped 28900

( Manufacturer Part Number: 6310835991 ), ( Part Type: Tran Brake ), ( Genuine Oem: Yes ), ( Ipn: 400.zz4908 ), ( Make: Miscellaneous )

Review ALLISON Used 69k Rv Trans Brake S/n Shipped fits 2008

The **Allison Transmission 6310835991 2008 Model 1000 Series RV Transmission Brake (Serial Number Included)** is a high-performance, heavy-duty component meticulously engineered for recreational vehicles (RVs) equipped with Allison s legendary **1000 Series automatic transmissions**. This specific part, identified by its unique **serial number 6310835991**, is designed to deliver reliable, precise braking control for vehicles requiring robust stopping power under demanding conditions such as steep grades, heavy loads, or frequent starts and stops in mountainous or urban environments. The transmission brake is a critical component of Allison s **1000 Series**, which is renowned for its durability, efficiency, and seamless integration with modern RV drivetrain systems, including those found in luxury coaches, motorhomes, and commercial-grade vehicles from the late 2000s.

Crafted with precision, this brake assembly features a **hydraulically actuated mechanism** that ensures consistent engagement and disengagement, reducing wear on the transmission and enhancing overall longevity. The design incorporates **high-grade friction materials** and reinforced structural components to withstand the thermal and mechanical stresses of repeated braking cycles, even under extreme loads. The **2008 model year** alignment of this part indicates it was produced during a period when Allison transmissions were at the peak of their refinement, balancing advanced technology with proven reliability. Whether installed in a **Class A diesel pusher, a heavy-duty fifth-wheel, or a high-performance motorhome**, this brake unit is engineered to complement the transmission s **torque converter and planetary gear system**, providing smooth, controlled deceleration without compromising the vehicle s drivetrain integrity.

For RV owners and technicians, this **serial-numbered transmission brake** represents a direct upgrade or replacement option for those seeking to restore or enhance the performance of their Allison-equipped rig. The inclusion of the **serial number 6310835991** ensures compatibility with specific transmission models, reducing the risk of mismatched parts and ensuring optimal fitment during installation. Whether used in a **new build, a restoration project, or as a direct replacement for a worn-out unit**, this component underscores Allison s commitment to **precision engineering and long-term durability**, making it an indispensable part for maintaining the safety and efficiency of modern RVs. Proper installation and maintenance of this brake system will contribute to smoother operation, extended transmission life, and greater confidence in the vehicle s ability to handle the rigors of the road.

### **Pros and Cons of buying a Allison 6310835991 (2008, 1000hp RV Transmission, Serial Number: 6310835991)**

#### **Pros:**

1. **High Horsepower Rating (1000hp)** This transmission is designed for heavy-duty applications, making it suitable for large RVs, commercial vehicles, or high-performance towing setups. The 1000hp rating suggests it can handle significant loads without excessive wear, provided it is properly matched with the engine and drivetrain.

2. **Durability and Reliability** Allison transmissions are known for their robustness in commercial and heavy-duty applications. The 6300 series (to which this model likely belongs) is built for longevity, especially in demanding environments like RV travel where frequent stops, starts, and heavy loads are common.

3. **Torque Capacity** The transmission is engineered to handle high torque loads, which is critical for towing large trailers or carrying heavy payloads. This reduces the risk of transmission failure under stress.

4. **Automatic Transmission Features** Allison transmissions often include advanced features such as:

- **Multi-stage torque converters** for smoother power delivery.

- **Electronic control modules (ECMs)** for better fuel efficiency and performance tuning.

- **Adaptive shift logic** to optimize gear changes based on load and speed.

These features can improve driving comfort and efficiency compared to manual transmissions.

5. **Compatibility with Modern Engines** The 2008 model year suggests it was designed to pair well with contemporary diesel engines (e.g., Cummins, Detroit Diesel, or other heavy-duty V8s), ensuring better power transfer and reduced strain on the engine.

6. **Aftermarket Support** Allison transmissions have a strong aftermarket presence, meaning you can find replacement parts, rebuild kits, and service manuals relatively easily. This is beneficial for long-term maintenance and repairs.

7. **Potential for Remanufacturing** If the transmission has been in service for a while, it may be a candidate for remanufacturing. A properly rebuilt Allison transmission can restore it to near-new condition, offering a cost-effective upgrade over buying new.

8. **Brand Reputation** Allison is a trusted name in heavy-duty transmissions, particularly in commercial and RV industries. Their transmissions are often preferred over competitors due to their durability and performance.

---

#### **Cons:**

1. **Age of the Transmission (2008 Model)**

- **Wear and Tear:** At 16 years old, the transmission may have accumulated significant mileage, leading to internal wear (e.g., clutch packs, bearings, seals). Even if it has been well-maintained, age-related failures (e.g., solenoid issues, fluid leaks) are more likely.

- **Obsolescence:** Older models may lack modern efficiency features (e.g., advanced shift algorithms, hybrid torque converter designs) found in newer transmissions. This could impact fuel economy and performance.

- **Part Availability:** While parts are still available, some components may become harder to source over time, increasing repair costs.

2. **Maintenance History Unknown**

- Without a full service history, it s impossible to know if the transmission has been properly flushed, rebuilt, or if critical components (e.g., torque converter, clutches) have been replaced. Neglect in maintenance (e.g., dirty fluid, skipped rebuilds) can lead to premature failure.

- **Fluid Condition:** Transmission fluid degrades over time and loses its lubricating properties. If the fluid hasn t been changed regularly, internal damage (e.g., clutch fade, bearing wear) could be severe.

3. **Potential for Hidden Damage**

- **Internal Wear:** Symptoms like rough shifting, delayed engagement, or unusual noises (grinding, whining) could indicate worn synchronizers, clutch packs, or bearings. These issues may not be immediately obvious during a test drive.

- **Seal and Gasket Failures:** Older transmissions often develop leaks around seals, gaskets, or the torque converter housing. These leaks can lead to low fluid levels, overheating, and further damage.

- **Electrical Issues:** Allison transmissions rely on solenoids and sensors for shifting. Failed solenoids or wiring problems can cause erratic shifting or complete failure to engage gears.

4. **High Repair Costs**

- Rebuilding or replacing an Allison transmission is expensive, often costing **$8,000 $15,000 ** depending on the extent of damage. This includes labor, parts, and potential engine compatibility issues if the transmission needs to be rebuilt or replaced.

- **Labor-Intensive:** Allison transmissions are complex, and repairs often require specialized tools and expertise. DIY repairs are risky due to the intricacy of the system.

5. **Compatibility Issues**

- **Engine Matching:** If the transmission isn t properly matched to the engine (e.g., torque converter size, shift programming), it may struggle with power delivery or overheating. A 1000hp engine requires precise tuning to avoid stressing the transmission.

- **Drivetrain Synergy:** Mismatched axles, differentials, or driveshafts can lead to premature wear. Ensuring all components are compatible is critical.

6. **Fuel Efficiency Concerns**

- Older transmissions may not be as efficient as newer models, especially if they lack advanced shift logic or hybrid torque converters. This could result in slightly higher fuel consumption compared to a well-maintained modern transmission.

7. **Resale Value**

- Even if the transmission is in good condition, a 2008 Allison may not hold value as well as newer models. If you plan to sell the vehicle later, the transmission s age could be a deterrent for buyers.

8. **Potential for Overuse**

- If the transmission has been subjected to extreme towing, frequent heavy loads, or poor driving habits (e.g., rapid acceleration, hard braking), it may have accelerated wear. This is harder to diagnose without a thorough inspection.

---

### **Conclusion and Recommendation**

Buying a **2008 Allison 6310835991 (1000hp RV transmission)** can be a **cost-effective choice** if you prioritize durability, torque capacity, and the ability to handle heavy loads. However, the **age of the transmission introduces significant risks**, particularly if its maintenance history is unknown. Here s how to approach this purchase:

#### **If You Proceed:**

1. **Demand a Full Service History**

- Request records of **transmission fluid changes** (every 50,000 100,000 miles), **rebuilds**, and **major repairs**. A well-maintained transmission can last much longer.

- Ask for proof of **fluid analysis** (if available) to confirm the condition of the fluid.

2. **Inspect for Visible Damage**

- Check for **leaks** around the transmission case, torque converter, and fluid lines.

- Listen for **unusual noises** (grinding, whining, clunking) during a test drive, especially during gear shifts.

- Look for **rough shifting** or **delayed engagement**, which may indicate worn clutches or synchronizers.

3. **Get a Professional Transmission Inspection**

- Have a **trusted mechanic or transmission specialist** perform a **fluid analysis** and **internal inspection** (if possible). This may involve:

- Checking fluid color, smell, and debris (metal particles indicate wear).

- Testing for **pressure issues** (low pressure can cause slipping).

- Inspecting the **torque converter** for proper engagement and fluid flow.

- If the transmission is **rebuilt**, verify the quality of the rebuild (e.g., OEM vs. aftermarket parts).

4. **Consider a Remanufactured Transmission**

- If the transmission is **past its prime**, a **remanufactured Allison** (from a reputable shop) could be a better investment than buying used. Remanufactured units come with warranties and are restored to factory specifications.

- Compare the cost of a remanufactured transmission ( $5,000 $8,000) against the risk of buying a used one with unknown reliability.

5. **Budget for Potential Repairs**

- Set aside **$3,000 $10,000 ** for unexpected repairs. Common issues in older Allisons include:

- **Clutch pack replacement** ( $1,500 $3,000).

- **Torque converter replacement** ( $2,000 $4,000).

- **Solenoid or ECM failure** ( $500 $1,500).

- **Full rebuild** ( $8,000 $15,000).

6. **Evaluate the Engine and Drivetrain**

- Ensure the **engine is compatible** with the transmission (e.g., torque converter size, shift programming).

- Check the **axles, differentials, and driveshafts** for wear, as mismatched components can stress the transmission.

#### **When to Avoid This Purchase:**

- If the **maintenance history is incomplete or unverifiable**.

- If the transmission exhibits **signs of severe wear** (leaks, rough shifting, overheating).

- If you **cannot afford major repairs** and are unwilling to

Details:

Have a question. No warranty is provided on electrical parts. This is the ALLISON 1000MH with E BRAKE used in RVs built on WORKHORSE CHASSIS. No expedited shipping is available.

RV shows last known miles approx 69,000 10/2018 CARFAX.

part #: 6310835991 prices

  • $2638.90-$3195.00

specifications autotransmissionsgo:

  • for makes: Allison
  • for years: 2008
  • mpn: 6310835991
  • part type: Tran Brake
  • genuine oem: Yes
  • ipn: 400.zz4908
  • make: Miscellaneous

shipping autotransmissionsgo:

  • class: Freight
  • service: Flat Rate Freight
  • type: Fixed
  • cost: $0.00

returns autotransmissionsgo:

  • policy: No Returns

general autotransmissionsgo:

  • condition: Used
  • Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission

offer autotransmissionsgo:

  • started: May 2, 2026
  • best offers: True
  • quantity: 1
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0

seller autotransmissionsgo:

  • rating: 100.0%
  • city: Lancaster, California
  • # reviews: 3598

payments autotransmissionsgo:

  • other
  • credit card: Diners-club
  • wallet: Paypal
for makes: allison, for years: 2008, part type: tran brake, genuine oem: yes,
manufacturer: miscellaneous, category: auto parts > car truck parts accessories > transmission drivetrain > automatic transmission, sku: 23691219541742602,
Allison 6310835991 Is Similar To:
autotransmissionsgo logo
2 offers $2638.90–$3195.00 USD
  • Used. Offer #1 priced at $2638.90 + $0.00 shipping estimate = $2638.90* total. RV shows last known miles approx 69,000 10/2018 CARFAX This is the ALLISON with E BRAKE used in the RV's built on the WORKHORSE CHASSIS.FREE SHIPPING
  • Remanufactured. Offer #2 priced at $3195.00 + $212.82 shipping estimate = $3407.82* total. PARKER CHELSEA PTO PARTS AND REPAIR. Remanufactured CHELSEA PTO 272NDHVP-B3BD With Shaft Brake LH Mount.+$212.82 shipping

Copyright © autotransmissionsgo.com