Sonnax FD-CP-20K, 6R140 Smart-Tech® Converter Clutch Kit

Captive clutch failure in the Ford 6R140 is a chronic problem that is difficult to address with stock components or traditional methods. Key OE parts are not available to the aftermarket, and the clutch assembly is challenging to work with.

The set of small, weak leaf springs holding the OE clutch are prone to breaking or nearing breakage, resulting in the OE steel clutch plates coming loose and gouging the cover splines. Clutch failure occurs when damage and debris become severe, a particularly frequent issue in heavy-duty trucks that put massive stress on converter components.

6R140 Converter Clutch Kit Smart-Tech kit FD-CP-20K replaces the entire captive clutch with unique components that completely bypass the cover splines, allowing even damaged covers to be reused. Assembly and installation are straightforward, and components can be custom fit for proper clutch release clearance to the converter core.

• Optimizes captive clutch performance, even in converters with damaged cover splines
• Straightforward assembly and installation
• High-quality, forged components guarantee better TCC durability and fitment than stock parts
• Rigid backing plate with integrated clutch plate reduces flex and provides a more durable clutch reaction surface than the OE
• Custom coil springs and retainer pins ensure quiet, rattle-free performance
• Extends working height of the front cover lip, minimizing the need to weld a renewal ring to the impeller
• Contains OE friction clutch plate