10" Length | 5" OD Rear Springs
Swift Springs Expands Rear Spring Line with New 10" x 5" OD 375 lb/in Spring
Swift Springs continues to grow its lineup of premium racing suspension products with the introduction of the new 100-500-375, a 10-inch x 5-inch OD rear spring featuring a 375 lb/in spring rate. Designed specifically for the right rear of Pro Late Model and Super Late Model asphalt race cars, this new spring gives teams another valuable option for optimizing rear suspension performance and chassis balance.
Developed in response to the evolving needs of today's asphalt racers, the new 375 lb/in spring expands Swift's rear spring lineup with a rate engineered to provide consistent performance under demanding racing conditions.
Developed for Today's Asphalt Late Models
As chassis technology continues to evolve, racers require more spring rate options to fine-tune suspension setups for varying track conditions and race strategies.
The new 10-inch rear spring was engineered specifically for right rear applications on Pro Late Model and Super Late Model race cars, providing teams with another tuning option to optimize mechanical grip, rear platform stability, and corner exit performance.
Like every Swift rear spring, the new 100-500-375 is manufactured to deliver the consistency and repeatability racers demand throughout an entire race season.
Built with Swift's Proprietary HS5.TW Material
The new rear spring is manufactured using Swift Springs' proprietary HS5.TW spring steel, produced in-house at the company's manufacturing facility in Japan.
Unlike many spring manufacturers, Swift develops both the spring material and the finished product. This vertically integrated manufacturing process allows for tighter quality control, exceptional rate consistency, and long-term durability under the extreme loads experienced in competitive racing.
The result is a spring engineered to perform at the highest level, race after race.
Designed for Performance
The new 10-inch x 5-inch OD rear spring incorporates several engineering features that help maximize suspension performance:
- Proprietary HS5.TW spring material for exceptional durability and consistency
- Linear spring characteristics throughout the usable stroke
- Optimized 1.5-inch coil spacing
- Designed for use with spring rubbers
- Faster chassis loading for improved suspension response
Together, these features provide racers with predictable suspension behavior and greater confidence when making chassis adjustments for changing track conditions.
Spring Specifications
| Part Number | Spring Rate (lb/in) | Usable Stroke | Max Stroke | Max Load |
|---|---|---|---|---|
| 100-500-375 | 375 | 6.2" | 7.0" | 2,643 lbs |
The addition of the 375 lb/in rate expands Swift's rear spring lineup, providing racers with another high-quality option for dialing in suspension performance on today's highly competitive asphalt Late Model platforms.
Available Now
The new 100-500-375 10-inch x 5-inch OD Rear Spring is in stock now and shipping through authorized Swift Springs dealers.
Swift Springs remains committed to developing innovative suspension solutions that give racers every possible advantage on the track. By continually expanding its product lineup and engineering new spring designs, Swift delivers the tuning options teams need to maximize performance and compete for wins.
Whether you're preparing for weekly competition or a marquee Late Model event, the new 375 lb/in rear spring is another example of Swift Springs' commitment to helping racers find Victory Lane.
