This new 4'' System capitalizes on Toyota Tundra's large wheelwell opening to allow use of 35'' tall tires with minimum lift height. The design of this 4'' System is a new style of suspension that delivers improved performance with fewer parts, and comes with an affordable price. The system includes replacement upper control arms constructed with .120'' wall 4130 Chromoly and 1'' FK Stainless Uniballs. Heavy duty extended length steering knuckles are included to provide proper functionality of the factory ESC (Electronic Stability Control) with 35'' tall tires. The knuckles retain the stock track width keeping the tires under the front fenders. The front differential is relocated to keep CV angles proper during the full range of travel. Front bump stop extensions and brake hose relocation brackets complete the front suspension. Rear lift comes from a 1'' lift block and u-bolt system to level the stance of the vehicle. Includes front 2.5 Dirt Logic Stainless Steel coil over shocks and rear 2.25 Dirt Logic Stainless Steel shocks for increased travel and aggressive offroad driving.. This new 4 System capitalizes on Toyota Tundras large wheelwell opening to allow use of 35 tall tires with minimum lift height. The design of this 4 System is a new style of suspension that delivers improved performance with fewer parts, and comes with an affordable price. The system includes replacement upper control with a .120 wall DOM arm with heavy duty extended range ball joints that provide additional strength to the front suspension. Heavy duty extended length steering knuckles are included to provide proper functionality of the factory ESC (Electronic Stability Control) with 35 tall tires. The knuckles retain the stock track width keeping the tires under the front fenders. The front differential is relocated to keep CV angles proper during the full range of travel. Front bump stop extensions and brake hose relocation brackets complete the front suspension. Rear lift comes from a 1 lift block and u-bolt system to level the stance of the vehicle. The 4 System is available with a spacer system to retain the factory Coilover shocks and rear Performance shocks.. TIRE SIZE - 35/12.50R18 WHEEL - 18X9 W/4 1/2" BS W/MINOR TRIMMING; TIRE SIZE - 35/12.50R20 WHEEL - 20X9 W/5" BS W/MINOR TRIMMING; TIRE SIZE - 295/65R20 WHEEL - 20X9 W/5" BS W/MINOR TRIMMING; TIRE SIZE - 295/70R18 WHEEL - 18X9 W/4 1/2" BS W/MINOR TRIMMING; 14. CAN NOT USE OEM WHEEL AND TIRE.; 69. DOUBLE CAB & CREWMAX 5.7L W/ AUTO TRANS ONLY.; 114. WILL NOT ALLOW USE OF 17? WHEELS.. Fabtech 07-15 Toyota Tundra 2WD/4WD 4in Uniball UCA System w/DL 2.5 Coilovers & Rear DL Shocks. 4" UCA KIT W/UNIBALLS & DLSS SHOCKS 07-15 TOYOTA TUNDRA 2WD/4WD. 4in. UCA KIT W/UNIBALLS/DLSS SHOCKS 07-14 TOYOTA TUNDRA 2WD/4WD. 4in. UCA KIT W/UNIBALLS/DLSS SHOCKS 07-15 TOYOTA TUNDRA 2WD/4WD. 4" UCA KIT W/UNIBALL. Suspension Lift Kit. LftKt-Suspw/Shock

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