

SADEV Left Half-Ball Joint Quickshift Linkage – Clio 2 Gr N (F0073023)
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A vital part for the precision of your Quickshift! This SADEV left half-ball joint (P/N: F0073023), or half-shell, is essential for maintaining zero-play on the shift linkage rod in the casing of your Renault Clio 2 Gr N's ST66 dog-ring gearbox. If this wear part shows any play, you will instantly lose the precise feel of your lever. Optimiz Access is your official distributor for SADEV Competition parts for Clio 2 Gr N, Clio Cup, Mégane N4, and Twingo R2.
Genuine SADEV quality for imprecision-free driving.
A Worn Half-Ball Joint = A Sloppy Lever, the End of Quickshift Precision
The performance of your ST66 SADEV dog-ring gearbox relies entirely on a zero-play gear control system. The left linkage half-ball joint (P/N: F0073023) is one of the two parts that form the pivot ball joint of the shift linkage rod. On your Renault Clio 2 Gr N, failure of this half-shell is the starting point for system degradation. Not replacing it is choosing imprecision and the risk of aggravated damage.
The Consequences of a Defective Half-Shell
- Critical Play in the Lever: Even minimal play in this ball joint is multiplied at the gear knob level, creating a sloppy gear lever. This loss of feel causes hesitation and slows down gear engagement.
- Accelerated Pin Wear: A non-adjusted or worn half-shell abnormally stresses the retaining pins and the locking circlip for the assembly, threatening the fixation of the quickshift rod to the gearbox casing.
- Loss of Confidence in the Race: The driver must be one with their machine. An uncertain gear change or excessive play breaks this confidence and generates stress, directly impacting overall performance.
Genuine SADEV Half-Ball Joint: Pivot Rigidity and Reliability
To restore the factory precision of your SADEV gear control system, the genuine half-shells are essential. Only they guarantee a perfect fit and long-term resistance. Optimiz Access, your partner in sports vehicle customization, equips you with SADEV Competition parts for:
- Renault Clio 2 Gr N (ST66 Gearbox)
- Renault Clio 2 X65 Cup
- Renault Clio 3 X85 Cup
- Renault Megane N4
- Twingo R2
Overhaul Questions for the Quickshift Control System
Should I replace the entire ball joint or just this half-piece?
It is highly recommended to replace both elements, the left half-ball joint (F0073023) and the right half-ball joint. Furthermore, the retaining pins and the circlip must be inspected and replaced if they show any deformation, to guarantee the safety and precision of the system. These complementary products are available at the bottom of this product page.
Is this part compatible with all linkage rods?
Yes, this SADEV half-shell is designed to be used with the genuine SADEV quickshift rod, whether short or long, mounted on the ST66 gearbox.
Our Commitment: Fast Delivery and Expert Installation
We supply quality SADEV parts with fast delivery worldwide. Our workshop in the Hauts-de-France region (near Cambrai, Lille) is at your disposal for the professional installation and maintenance of your competition transmission.


















