Performance & Fitment

• • Application: Jaguar E-Type (Series 1, 2, and 3 variants utilizing the standard factory longitudinal length).

  • Diameter: 0.800". A strategic intermediate upgrade, optimized for drivers who want enhanced high-speed stability and modern handling control during spirited driving, club events, or vintage rallies.

  • Length: 32.312" (Exact factory dimensional replacement).

  • Design: Solid, single-piece alloy construction engineered for maximum torsional strength and resistance to structural sag.

Premium Construction

• • Material: High-Strength Alloy Steel. Forged from premium racing-grade steel designed to handle continuous structural twisting without sagging or losing its spring memory over time.

  • Manufacturing Process: Centerless Ground & Heat-Treated. The bars are through-hardened to achieve an optimal balance of tensile strength and elasticity. The centerless grinding process strips away surface imperfections, creating a mirror-smooth finish that eliminates "stress risers" where micro-fractures typically start.

  • Coating: Heavy-Duty Powder Coating. Seals the raw steel against road moisture, engine oil leaks, and road salt, ensuring long-term protection against corrosive pitting.

🇬🇧 Classic Jaguar Suspension Tech & Installation Notes

Upgrading the longitudinal torsion bars on an E-Type requires strict attention to factory positioning and mechanical tension to ensure safe installation and perfect alignment:

• ⚠️ Caution: High-Tension Energy: Torsion bars store an immense amount of mechanical energy. Before loosening or attempting to remove the factory bars, you must use an E-Type torsion bar unloading tool or safely support the lower wishbone assembly to completely relieve the tension. Attempting to force a loaded bar out can cause catastrophic personal injury and permanently distort the chassis anchorage points.

• ❌ The Spline Indexing System: Jaguar engineered the front and rear splines of the E-Type torsion bars with a different number of teeth (fine vernier adjustment). This allows you to fine-tune the front ride height. Rotating the bar a single notch in the lower wishbone vs. one notch in the rear chassis reaction plate changes the front trim height by minute fractions of an inch, making it easy to level the front end perfectly.

• ❌ Spline Sockets Cleanout: Over decades, the splined sockets inside the front lower wishbones and the rear reaction plate gather road grime, hardened grease, and surface rust. Before sliding the new 0.800" bars into place, thoroughly clean out these internal receivers with a wire brush and a premium penetrating solvent. Forcing a new bar into a clogged socket can easily strip the splines.

• ❌ Anti-Seize and Lubrication: Always apply a generous coat of heavy-duty, waterproof anti-seize or a moly-based grease to both splined ends before installation. Because these splines must allow for slight movement as the lower control arm moves through its suspension arc, running them dry will cause severe squeaking, internal corrosion, and eventual seizure.

• ❌ Maintain Left & Right Orientation: Torsion bars are directional. They are structurally pre-stressed in a specific direction during manufacturing or take a permanent "set" based on the rotational torque of supporting the car. Ensure you inspect the bar ends for Left (Passenger side on LHD) and Right (Driver side on LHD) stamps. Swapping their sides will force the metal grain to untwist against its set, causing rapid ride height sag or premature bar failure. 

What’s Included

• (1) Pair of solid torsion bars

Warranty

Backed by a 1-year warranty for peace of mind.

5 in stock (can be backordered)