1. Shocks & Suspension On Sale
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  3. BALLS SCAL-PS778533-LS

BALLS SCAL-PS778533-LS Upper Shaft Jack Bearing Seal Kit All

fits model: Rmk, 550, Trail. make: Polaris. year: 2008–2010.

Scal-ps778533-ls All Balls 2008-2010 Polaris Trail Rmk 550 Upper Shaft Jack Bearing And Seal Kit

( Brand: Balls ), ( Manufacturer Part Number: SCAL-PS778533-LS ), ( Part Type: Bearing Seal Shaft )

Review BALLS All Polaris Upper Shaft Jack Bearing And Seal Kit fits TRAIL RMK 550 2008–2010

The **Balls SCAL-PS778533-LS Upper Shaft Jack Bearing Seal Kit** is a meticulously engineered aftermarket solution designed exclusively for the **2008 2010 Polaris Trail RMK 550**, ensuring optimal performance, durability, and reliability for this rugged off-road machine. This high-quality kit is crafted to address common wear issues in the upper shaft jack bearing assembly, a critical component that supports the transmission s smooth operation and longevity. Engineered with precision, the kit includes a **sealed bearing assembly** and a **high-performance rubber seal**, both of which are built to withstand the extreme demands of off-roading, including heavy loads, rough terrain, and fluctuating temperatures. The **upper shaft jack bearing** is reinforced with durable materials to minimize friction and prevent premature failure, while the **seal** features a tight, resilient fit to effectively contain lubrication and block out contaminants like dirt, mud, and debris common culprits in bearing wear. This kit is a direct replacement for the OEM parts, ensuring an exact fit without compromising the Trail RMK 550 s performance. Whether tackling rocky trails, steep climbs, or rough descents, this kit helps maintain the integrity of the transmission system, reducing the risk of costly repairs and extending the lifespan of your vehicle. Ideal for both seasoned riders and maintenance-conscious owners, the **Balls SCAL-PS778533-LS** is a trusted choice for those seeking dependable, long-lasting components to keep their Polaris Trail RMK 550 running at its best.

### **Pros and Cons of buying a Balls Scal-PS778533-LS 2008-2010 Polaris Trail RMK 550 Upper Shaft Jack Bearing Seal Kit**

#### **Pros:**

1. **Direct Fitment** This kit is specifically designed for the 2008 2010 Polaris Trail RMK 550, ensuring compatibility without modifications. This reduces the risk of improper installation and potential damage to the drivetrain.

2. **High-Quality Components** Balls Manufacturing is a well-regarded brand in the off-road and ATV industry, known for durable seals, bearings, and shaft components. The kit likely includes precision-engineered parts that can improve longevity and performance compared to generic or aftermarket alternatives.

3. **Prevents Leaks and Wear** The upper shaft jack bearing and seal kit addresses common failure points in Polaris Trail RMK models, such as oil leaks from the transmission or excessive wear on the shaft jack. Replacing these components proactively can prevent costly internal damage and extend the life of the drivetrain.

4. **Ease of Installation** The kit is designed for straightforward installation, often requiring only basic tools. Many users report that it can be installed in a few hours with minimal mechanical expertise, making it accessible for DIYers.

5. **Cost-Effective Maintenance** Compared to the potential cost of repairing or replacing a damaged transmission or shaft jack, this kit offers a relatively inexpensive way to maintain the vehicle s health. It can save money in the long run by avoiding more extensive repairs.

6. **Improved Performance** A properly functioning shaft jack and seal ensure smooth operation of the drivetrain, reducing vibration and noise. This can enhance the riding experience and prevent premature failure of related components.

7. **Warranty and Support** Balls Manufacturing typically stands behind its products with warranties or return policies, providing peace of mind in case of defects or installation issues.

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#### **Cons:**

1. **Limited Availability** Depending on the region, this specific kit may not be readily available at all local ATV shops or online retailers. Some buyers may need to order directly from the manufacturer or a specialized supplier, which could result in shipping delays.

2. **Price Point** While this kit is a cost-effective solution compared to major repairs, it may still be more expensive than generic or budget-friendly alternatives. Buyers should compare prices across different sellers to ensure they are getting the best deal.

3. **Installation Complexity for Beginners** Although the kit is designed for ease of installation, some users particularly those without prior mechanical experience may find it challenging. Improper installation could lead to leaks, premature wear, or even damage to the transmission. In such cases, consulting a professional mechanic may be advisable.

4. **Compatibility Concerns** While the kit is advertised for the 2008 2010 Polaris Trail RMK 550, there is always a risk of slight variations in drivetrain designs between model years or specific trim levels. Double-checking the fitment details before purchasing is essential to avoid mismatches.

5. **Potential for Counterfeit Products** As with any popular aftermarket part, there is a risk of purchasing counterfeit or low-quality replicas, especially when buying from third-party sellers. Buyers should verify the seller s reputation and ensure they are purchasing directly from an authorized source or a trusted retailer.

6. **Additional Maintenance Requirements** While this kit addresses the shaft jack and seal, it does not cover other potential wear points in the drivetrain (e.g., gears, synchronizers, or fluid leaks). Buyers should be aware that this is a targeted repair and may need to address other issues separately.

7. **Time Investment** Installing the kit requires removing and reinstalling parts of the transmission, which can take several hours. This may not be ideal for those with limited time or patience for DIY projects.

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### **Conclusion:**

The **Balls Scal-PS778533-LS Upper Shaft Jack Bearing Seal Kit** for the 2008 2010 Polaris Trail RMK 550 is a **highly recommended** maintenance solution for owners looking to prevent leaks, reduce wear, and extend the life of their vehicle s drivetrain. The kit s direct fitment, quality components, and ease of installation make it a practical choice for both experienced mechanics and DIYers. However, buyers should weigh the potential challenges such as availability, installation complexity, and the risk of counterfeit products against the benefits.

For most users, the **pros outweigh the cons**, particularly if the kit is purchased from a reputable source and installed correctly. If budget is a concern, comparing prices and verifying the seller s authenticity will help ensure a smooth experience. Ultimately, investing in this kit is a **proactive measure** that can save time, money, and frustration in the long term by avoiding costly drivetrain failures.

### **Recommendation:**

- **Purchase from an authorized dealer or a trusted online retailer** (e.g., Balls Manufacturing s official website, reputable ATV parts suppliers, or well-reviewed marketplaces).

- **Follow the installation instructions carefully**, and consider consulting a mechanic if unsure about any steps.

- **Combine this repair with a full transmission fluid change** for optimal performance.

- **Monitor the vehicle post-installation** for any signs of leaks or unusual noises, and address them promptly if they occur.

This kit is a **solid investment** for maintaining the health of your Polaris Trail RMK 550 and ensuring reliable performance on the trail.

Details:

Parts without fitment are to be assumed universal and may require vehicle modification. Credit or Debit Card. This is helpful if you are buying multiple items. I need to exchange an item.

Brand: All Balls, model Number: SCAL-PS778533-LS. 2008 2010 Polaris Trail RMK 550 Upper Shaft Jack Bearing Seal Kit: Compatibility: Snowmobile, Part Application.

part #: scalps778533 price

  • $37.36

specifications snowmobileshocksoi:

  • for models: Rmk, 550, Trail
  • for makes: Polaris
  • for years: 2008-2010
  • brand: Balls
  • mpn: Scal-ps778533-ls
  • part type: Bearing Seal Shaft

seller snowmobileshocksoi:

  • # reviews: 84876
  • rating: 99.9%
  • city: San Marcos, CA

payments snowmobileshocksoi:

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

shipping snowmobileshocksoi:

  • class: Standard
  • cost: $0.00
  • service: Standard
  • type: Fixed
  • transit: 4-7 Days

general snowmobileshocksoi:

  • Parts Accessories > Snowmobile Parts > Shocks Suspension
  • condition: New

offer snowmobileshocksoi:

  • sold: 0
  • availability: In Stock
  • quantity: 9
  • started: May 8, 2026
  • options: Ship-to-home

returns snowmobileshocksoi:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Seller
for models: rmk, 550, trail, for makes: polaris, for years: 2008-2010, part type: bearing seal shaft,
category: snowmobile parts > shocks suspension, sku: 22342710033633722,
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1 offer $37.36 USD
  • New. Offer #1 priced at $37.36 + $0.00 shipping estimate = $37.36* total. Credit or Debit Card Part Application: Upper Shaft.FREE SHIPPING

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