Each template assist to insure proper installation of castor correction bushings so the axle rotates on center rather then the bracket. The result is 2* change in caster for YELLOW bushings and 3* change in caster for BLACK bushings. (Caster templates are NOT required for Landtank caster plates.) Designed to replace the existing stock rear links, or an additional upgrade for lift systems over 4″, each kit is available separately, including the front axle tabs. The HD brackets are zinc plated 3/16″ stock and the 1/8″ wall tubing. Heavy Duty Rear LCAs are fabricated from solid bar with over-sized ends to help protect frame mounts. Both configurations available with or without OEM Toyota bushings, and extended or stock length. Each Seat Bracket Kit relocates the OEM rails almost 2 full inches aft of the stock location, providing additional leg room for front seat occupant(s). (Not for use with manual seats.) Click here for the install guide. Modified OEM Fan Clutch, temperature tuned at 95* per Toyota specifications using 15,000cst oil. All around performance upgrade for cooler engine and AC temperatures. Optional JIS (Japanese Industrial Standard) hardware kit includes hardware for the fan and water pump mounting side.. Gen IIl performance MAF housing includes o-ring seal and sensor mounting screws. Click here for installation guide.