Protect your rod ends when adjusting your front lower control arms to the widest setting for angle clearance / track width, (which is about 20mm of thread depth in rod end receiver). Covers 55mm of excessive exposed threads. ~ Gold Zinc Plated reinforcement sleeve / Jam nut ~ Upgrade for exsisting FLCA, Included in upcoming LB FLCA ~ 26mm Wrench Square ~ m22 1.5 Reverse Threaded ID matches all MAX forged rod end bearing housing threads ~ Sold in pairs