There are three Tundra wheelbases: 126.8 inches for Regular Cab/standard bed models; 145.7 inches for Regular Cab/long bed, Double Cab/standard bed and CrewMax models, and a massive 164.6 inches for Double Cab/long bed models.

Toyota Tundra's advanced TripleTech frame uses wide, full-boxed frame rails for the front portion, reinforced C-channel under the cab and an open C-channel underneath the bed to maximize strength, ride quality and durability.

Compared to the previous Tundra, the new model features more reinforced areas, increased high strength steel, increased steel gauge, and higher-rigidity suspension mounts. The engineering pays dividends in both work capability and ride-and-handling.

The double A-arm front suspension uses coil-over spring shock units, and a front-mounted steering rack helps enhance steering feel and response. The Tundra is equipped with the largest standard wheels in the segment - 18 x 8 inches with 255/70 R18 tires. Limited grade models step up to standard 18 x 8-inch aluminum-alloy wheels with wider 275/65 R18 tires. As an option, Limited models can be outfitted with factory-optional 20-inch alloy wheels with 275/55 R20 tires.

Compared to the previous Tundra, an increased tire-turning angle reduces the turning radius. The rear suspension features staggered shocks that are mounted outboard of the leaf springs to improve the shock's dampening efficiency. Spring rates have been tuned to provide a flat vehicle stance when fully loaded, and the spring "toe-out" mounting improves towing stability. Tuned bump stops improve controllability with large loads.

An optional TRD (Toyota Racing Development) Off-Road Package is available and combines off-road tuned suspension featuring Bilstein gas-charged mono-tube shock absorbers; 275/65 R18 B.F. Goodrich Radial T/A off-road tires on unique 18-inch alloy wheels; fog lamps, and special graphics.


The Segment's Most Advanced Brakes

Toyota equipped all new-model Tundras with the segment's most advanced standard braking systems. The four-wheel disc brake system uses large ventilated rotors front and rear: the front rotors measure 13.9 inches in diameter and 1.26-inches thick, with four-piston calipers. The rear discs measure 13.6 x 0.71-inch and use two-piston calipers. Anti-lock brakes (ABS) with Electronic Brake-force Distribution (EBD) and Brake Assist (BA) are standard on all models.

EBD optimizes brake pressure at each wheel for greater control under braking, especially when cornering. The Brake Assist system is designed to determine if the driver is attempting emergency braking. If the driver has not pressed firmly enough on the brake pedal to engage the ABS, the system supplements the applied braking power until pedal pressure is released.


A New Level of Pickup Truck Traction Management

The 2007 Tundra scores another first for the full-size pickup truck segment by equipping every model with the company's most advanced traction-enhancing dynamic control. First, the standard Automatic Limited-slip Differential (A LSD) provides computer-controlled cross-axle torque management that allows some wheel-spin (necessary for some surfaces). Compared to a conventional mechanical limited slip differential, the A-LSD system helps provide better acceleration in deep sand or mud and on low- or mixed-friction surfaces.

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