1. Shocks & Suspension On Sale
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  3. BALLS SCAL-PS778417-LS

BALLS SCAL-PS778417-LS Srv Upper Shaft Jack Bearing Seal Kit Ski Doo All

fits model: Sr540. make: Ski-doo. year: 1982–1984.

Scal-ps778417-ls All Balls 1982-1984 Ski-doo Srv Sr540 F G H Upper Shaft Jack Bearing And Seal Kit

( Brand: Balls ), ( Manufacturer Part Number: SCAL-PS778417-LS ), ( Part Type: Bearing Seal Shaft )

Review BALLS All Ski doo Srv Fh Upper Shaft Jack Bearing And Seal Kit fits SR540 1982–1984

The **Balls SCAL-PS778417-LS Upper Shaft Jack Bearing Seal Kit** is a meticulously engineered aftermarket solution designed exclusively for **1982 1984 Ski-Doo SRV and SR540 models**, addressing a common yet critical wear point in the upper shaft jack assembly. This precision-crafted kit replaces the original factory bearing and seal components, which are prone to premature failure due to exposure to moisture, debris, and the relentless forces of off-road use. The kit features a **high-performance ball bearing** with a robust steel cage and hardened steel balls, ensuring smooth rotation and minimizing friction key factors in extending the lifespan of your Ski-Doo s drive shaft and transmission. Complementing the bearing is a **lip-sealed rubber gasket**, engineered to provide an airtight and watertight barrier against contaminants while maintaining optimal lubrication within the shaft jack. The seal s durable construction resists cracking and deformation under extreme temperatures, whether you re tackling frozen trails in winter or blazing through high-speed desert runs in summer. Installation is straightforward, requiring only basic tools, as the kit includes all necessary hardware such as circlips and spacers to ensure a secure and properly aligned fit. By upgrading to this **OEM-replacement-grade kit**, riders can eliminate costly transmission leaks, reduce the risk of drive shaft damage, and restore the original performance characteristics of their classic Ski-Doo, making it a must-have for both restoration projects and routine maintenance. Whether you re a weekend warrior or a seasoned enthusiast, this kit delivers the reliability and durability needed to keep your SRV or SR540 running at peak efficiency for years to come.

### **Pros and Cons of buying a Balls Scal-PS778417-LS (1982-1984 Ski-Doo SRV SR540 Upper Shaft Jack Bearing Seal Kit)**

#### **Pros:**

The Balls Scal-PS778417-LS upper shaft jack bearing seal kit is a specialized replacement part designed specifically for older Ski-Doo SRV and SR540 models from 1982 to 1984. Here are the key advantages of purchasing this kit:

1. **OEM or High-Quality Replacement** Balls is a well-known manufacturer of aftermarket parts for snowmobiles, motorcycles, and ATVs, often producing components that meet or exceed OEM standards. This kit is likely designed to fit precisely, reducing the risk of improper installation or premature wear.

2. **Prevents Leaks and Damage** The upper shaft jack bearing and seal are critical components that prevent oil leaks and ensure smooth operation of the transmission. A failing seal can lead to lubrication loss, increased friction, and eventual damage to the transmission or other drivetrain parts. Replacing this kit proactively can extend the life of your Ski-Doo.

3. **Cost-Effective Maintenance** Replacing worn seals and bearings early is often cheaper than waiting until the failure causes significant damage. This kit provides a straightforward, affordable solution compared to a full transmission overhaul.

4. **Improves Performance and Reliability** A properly functioning upper shaft jack ensures smooth power transfer from the engine to the drivetrain. Replacing worn parts can restore performance, reduce vibration, and prevent unexpected breakdowns during rides.

5. **Easy Installation** The kit typically includes clear instructions and may require only basic tools. Since it s a direct replacement, it should be straightforward to install, even for intermediate DIY mechanics.

6. **Compatibility** This kit is explicitly designed for your model year (1982 1984 Ski-Doo SRV/SR540), ensuring a proper fit without the need for modifications or additional parts.

7. **Access to Support** Balls offers customer support and warranty coverage, which can be helpful if there are issues with the installation or quality of the parts.

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#### **Cons:** While this kit offers many benefits, there are some potential drawbacks to consider:

1. **Age of the Part** The 1982 1984 Ski-Doo models are quite old, and finding compatible aftermarket parts can sometimes be challenging. While Balls is a reputable brand, older model-specific kits may be harder to source than newer parts.

2. **Potential for Counterfeit or Low-Quality Parts** Purchasing from unauthorized sellers (e.g., third-party marketplaces without verification) could result in counterfeit or subpar replicas. Always buy from trusted dealers or the manufacturer s official website to avoid this risk.

3. **Additional Labor Costs** If you re not comfortable performing the replacement yourself, labor costs at a dealership or mechanic could be significant. Transmission work often requires specialized tools and expertise, which may not be cheap.

4. **Compatibility with Modified Vehicles** If your Ski-Doo has been modified (e.g., with aftermarket transmissions or drivetrain upgrades), the stock kit may not fit perfectly. Always verify compatibility with your specific build.

5. **Limited Availability** Older model-specific kits may not be as widely stocked as newer parts. You might need to order from a specialty supplier, which could result in longer wait times.

6. **Risk of Overlooking Other Issues** During installation, you may discover other worn or damaged components (e.g., seals, bearings, or transmission fluid). If you re not thorough, you might miss these and face recurring problems.

7. **Cost vs. Benefit for High-Mileage Vehicles** If your Ski-Doo has extensive mileage or significant wear elsewhere, investing in this kit might not be the most cost-effective solution. In some cases, a full transmission rebuild or replacement could be more practical.

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### **Conclusion:**

The Balls Scal-PS778417-LS upper shaft jack bearing seal kit is a **highly recommended** replacement part for your 1982 1984 Ski-Doo SRV/SR540 if you re experiencing leaks, transmission issues, or plan to maintain your vehicle proactively. The kit addresses a critical wear point, improves reliability, and can prevent costly repairs down the line. However, the decision should also consider your mechanical comfort level, the availability of the part, and whether your vehicle is otherwise in good condition.

If you re confident in your DIY skills and can source the kit from a trusted supplier, purchasing and installing this seal kit is a **strong maintenance choice**. If you re unsure about the installation process or suspect other underlying issues, consulting a professional mechanic may be wise to ensure a complete and correct repair.

**Final Recommendation:** Buy the Balls Scal-PS778417-LS kit if:

- You re experiencing leaks or transmission issues.

- You want to preemptively maintain your Ski-Doo.

- You have access to clear installation instructions and basic tools.

- You purchase from an authorized dealer to avoid counterfeit parts.

Avoid purchasing if:

- Your Ski-Doo has severe transmission damage beyond this kit s scope.

- You re unable to install it properly without professional help.

- You can t verify the authenticity of the part source.

Details:

This is helpful if you are buying multiple items.: Brand: All Balls, model Number: SCAL-PS778417-LS. 1982 1984 Ski-Doo SRV SR540 FH Upper Shaft Jack Bearing Seal Kit: Compatibility: Snowmobile, Part Application. Jack shaft and drive kits contain chain case bearing, support seals, o-rings, miscellaneous components as needed.

Parts without fitment are to be assumed universal and may require vehicle modification. I need to exchange an item.

part #: scalps778417 price

  • $50.99

specifications snowmobileshocksoi:

  • for models: Sr540
  • for makes: Ski-doo
  • for years: 1982-1984
  • brand: Balls
  • mpn: Scal-ps778417-ls
  • part type: Bearing Seal Shaft

offer snowmobileshocksoi:

  • started: June 7, 2026
  • options: Ship-to-home
  • quantity: 9
  • availability: In Stock
  • sold: 0

returns snowmobileshocksoi:

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

payments snowmobileshocksoi:

  • wallet: Apple-pay
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  • credit card: Mastercard

general snowmobileshocksoi:

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

seller snowmobileshocksoi:

  • city: San Marcos, CA
  • rating: 99.9%
  • # reviews: 86727

shipping snowmobileshocksoi:

  • type: Fixed
  • class: Standard
  • service: Standard
  • cost: $0.00
  • transit: 4-7 Days
for models: sr540, for makes: ski-doo, for years: 1982-1984, part type: bearing seal shaft,
category: snowmobile parts > shocks suspension, sku: 22633743600804891,
Balls SCAL-PS778417 Is Similar To:
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1 offer $50.99 USD
  • New. Offer #1 priced at $50.99 + $0.00 shipping estimate = $50.99* total. Part Application: Upper Shaft Jack shaft and drive shaft kits contain chain case bearing, support bearing, seals, o-rings, and miscellaneous components as needed.FREE SHIPPING

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