KNUCKLE BOX THREE

The Rancho RS66505B-3 is a redesigned 4.5-inch performance suspension system. It provides 4.5 inches of raised height in the front and 3 inches in the rear. The system is engineered for OE-level fit and function, superior strength, and drivability both on and off-road. It features a fully boxed welded subframe manufactured from high-strength, low-alloy steel and DOM tubing, along with CNC-machined ductile iron steering knuckles. Differential drop brackets are included to properly align pinion and CV joint angles. The system maintains the factory rack and pinion location and utilizes OE tie rod ends, with bolt-on 4.5-inch strut spacers for the front that install without disassembly of factory struts. No drivetrain modifications are required, and the system is designed to fit 35-inch tires. Other kit features include CV spacers, brake line brackets, sway bar relocation brackets, and necessary hardware. The rear includes a tapered block, U-bolts, and other necessary hardware. Rancho strut towers (Part no. RS886519) or a set of two RS5000™X struts (sold separately) are required for complete installation. A set of two Rancho RS5000X, RS7000®MT or RS9000™XL rear shock absorbers are recommended.