The 1956-1968 GM Car Turbo Hydromatic / 4-Speed 68" Screw On Speedometer Cable is a high-quality replacement designed to restore smooth, reliable speedometer operation in your classic GM vehicle. Measuring 68 inches in length, this cable is ideal for cars equipped with Turbo Hydromatic or 4-speed manual transmissions. It features a threaded screw-on end for secure connection to the transmission and speedometer head. Built with a durable inner cable and reinforced casing, it ensures consistent signal transfer and long service life—perfect for daily drivers or full restorations.
Installation:
Difficulty: 2/5 – Basic mechanical skill and hand tools required.
Instructions: Disconnect the battery. Remove the old cable from the transmission and the back of the speedometer. Route the new cable along the original path, avoiding sharp bends or hot surfaces. Screw the cable ends securely into the transmission and speedometer head. Reconnect the battery and test speedometer function during a short drive.
Redline Restomotive® has established itself as a premier brand in the world of classic car restoration, providing enthusiasts with high-quality parts that meet the exacting standards of original manufacturer specifications. Dedicated to the preservation of American automotive history, Redline Restomotive® combines advanced manufacturing techniques with an in-depth understanding of vintage vehicles. The result is a range of products that seamlessly blend into the design and function of classic cars, giving restorers and collectors the assurance that each part reflects the era’s style, quality, and performance.
Crafted for both durability and aesthetic accuracy, Redline Restomotive® parts are ideal for those who value authenticity in their restoration projects. Whether restoring a car for display, personal enjoyment, or roadworthiness, customers rely on Redline Restomotive® for parts that not only fit perfectly but also contribute to the overall integrity and longevity of the vehicle. Each item is carefully engineered to replicate the fit, finish, and functionality of original components, making Redline Restomotive® a trusted name in restoration circles.
The extensive product catalog from Redline Restomotive® covers a wide variety of categories, allowing classic car owners to source everything from essential mechanical parts to subtle interior details. This comprehensive approach enables a cohesive restoration experience, where customers can confidently maintain both the exterior and interior authenticity of their vehicles. With Redline Restomotive®, every detail matters, providing the perfect balance between innovation and tradition for classic car preservation.
For more information or to explore their product offerings, you can visit retailers such as Muscle Cars & Classics, which feature a comprehensive selection of Redline Restomotive® products.
| Make | Model | Years |
| Buick | Skylark | 1964 - 1967 |
| Buick | Special | 1964 - 1967 |
| Chevrolet | Chevelle | 1964 - 1968 |
| Chevrolet | El Camino | 1964 - 1968 |
| Oldsmobile | Cutlass | 1964 - 1968 |
| Pontiac | GTO | 1964 - 1968 |
| Pontiac | Grand Prix | 1964 - 1977 |
| Pontiac | LeMans | 1964 - 1968 |
| Pontiac | Tempest | 1964 - 1968 |
| Part Type | Speedometer Cable |
| Proposition 65 | WARNING: Cancer and Reproductive Harm |
