Schumacher Cougar LD3 Fin Turnbuckle Kit Stealth Black (JCO2969-2)

Schumacher Cougar LD3 Fin Turnbuckle Kit Stealth Black is a lightweight titanium adjustment set designed for the LD3 chassis. It centers on a .143” (3.7mm) titanium hex interface that tapers to a 3.5mm thread base, built to accept Schumacher ball-cups after modification. The fin-style cuts revolve around the center, delivering a distinctive look and precise, smooth toe adjustments.

With left- and right-hand threads, and the left-hand side clearly marked for easy orientation, these turnbuckles combine reliability with fast setup. The design reflects the original JConcepts approach, celebrated for refined machining and lightweight strength—an established choice for performance racing. An optional turnbuckle adjustment wrench is available separately, and installation may require drilling out plastic parts to fit Schumacher ball-cups.