Tein M56x2.0 ID70 Left-Hand Thread Spring Seat – Precise OEM Coilover Replacement

The Tein Spring Seat M56x2.0 ID70 - Left Hand Thread is a genuine Tein replacement collar designed for enthusiasts who refuse to compromise their coilover setup. If your original spring seat is worn, seized, or damaged, this part restores precise ride height adjustment and preload control on Tein coilovers that use a M56 x 2.0 threaded body with 70 mm inner diameter springs.

Unlike generic collars, this spring seat is engineered by Tein specifically for their threaded shock bodies. The left-hand thread configuration is critical: it’s used on the side of the vehicle where a standard right-hand thread could gradually unwind under suspension movement. By matching the original direction of rotation, this spring seat helps maintain your settings and reduces the risk of ride height drifting over time.

Manufactured from durable aluminum and finished in Tein’s signature green, this M56x2.0 ID70 spring seat offers corrosion resistance and smooth adjustment with proper cleaning and anti-seize use. It threads cleanly onto compatible Tein coilover bodies, allowing you to:

• Rebuild or refresh existing Tein coilovers without buying a full new kit
• Recover stuck or uneven ride height adjustment caused by damaged or rounded original collars
• Maintain consistent corner balance and preload for track, street, or stance-focused setups
• Preserve OEM-level fitment and reliability by staying with a genuine Tein component

Because spring seats are load-bearing components, choosing an original Tein part matters. This M56x2.0 ID70 left-hand thread spring seat matches the factory dimensions and thread pitch, reducing the risk of cross-threading or poor fit that can occur with universal hardware. It’s a smart choice for owners running Tein coilovers who want their suspension to feel as precise and predictable as the day it was installed.

Key technical details:

• Genuine Tein spring seat (aluminum collar)
• Thread size: M56 x 2.0
• Compatible spring inner diameter: 70 mm (ID70)
• Thread direction: Left-hand thread (for the designated side of the vehicle)
• Supports ride height and spring preload adjustment on compatible Tein coilovers

If you are replacing only one side, be sure to match left-hand and right-hand threaded components as originally supplied by Tein so your collars tighten in the correct direction under load. When in doubt, confirm your coilover model’s thread size, pitch, and spring I.D. before ordering, or cross-reference by Tein part number LSS01-Q1258.

For owners who rely on their suspension for daily driving, spirited canyon runs, or track days, the Tein Spring Seat M56x2.0 ID70 - Left Hand Thread offers a precise, trustworthy way to restore adjustability and extend the life of your Tein coilover system.