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1979-1995 Toyota 4x4 Builder's Guide - How To Trail Your Toyota



In 1990, the second-generation 4Runner was introduced, and it featured a coil spring four-link rear suspension.
In 1990, the second-generation 4Runner was introduced, and it featured a coil spring four-link rear suspension.		The rear spring perches and U-bolts can be replaced with a spring perch kit from All-Pro. The unique design of this setup keeps all of the bolts and hardware above the axletube away from obstacles and potential damage.
The rear spring perches and U-bolts can be replaced with a spring perch kit from All-Pro. The unique design of this setup keeps all of the bolts and hardware above the axletube away from obstacles and potential damage.		Solid-axle rigs can gain suspension travel using a weld-on long-travel front shock hoop. The hoop shown here is from All-Pro Off-road. Hoops are available for early solid-axle rigs and late-model SAS trucks and 4Runners.
Solid-axle rigs can gain suspension travel using a weld-on long-travel front shock hoop. The hoop shown here is from All-Pro Off-road. Hoops are available for early solid-axle rigs and late-model SAS trucks and 4Runners.
Weld-on differential armor is available to protect the axlehousing. Note the cutout for the oil fill/drain.
Weld-on differential armor is available to protect the axlehousing. Note the cutout for the oil fill/drain.		Four popular Toyota diffs from left to right are the 8-inch four-cylinder diff, 8-inch four-cylinder with ABS, Turbo/V6 8-inch diff, and Turbo/V6 8-inch diff with ABS. Note the increased gusseting on the Turbo/V6 diff.
Four popular Toyota diffs from left to right are the 8-inch four-cylinder diff, 8-inch four-cylinder with ABS, Turbo/V6 8-inch diff, and Turbo/V6 8-inch diff with ABS. Note the increased gusseting on the Turbo/V6 diff.		The Toyota models discussed in this article used three different steering gears. Shown left to right are the '79-'85 gear, the '86-'88 IFS 4x4 gear, and the '89-'95 IFS 4x4 gear. The '89-'95 gear received a different sector shaft and is a quicker ratio than the '86-'88 gear. Both IFS steering gears are also plumbed for power steering coolers. The IFS steering gear is used for SAS applications and to achieve crossover/high-steer setups in early-model trucks.
The Toyota models discussed in this article used three different steering gears. Shown left to right are the '79-'85 gear, the '86-'88 IFS 4x4 gear, and the '89-'95 IFS 4x4 gear. The '89-'95 gear received a different sector shaft and is a quicker ratio than the '86-'88 gear. Both IFS steering gears are also plumbed for power steering coolers. The IFS steering gear is used for SAS applications and to achieve crossover/high-steer setups in early-model trucks.
The stock drag link in '79-'85 models is relatively weak and another reason that high-steer and crossover steering setups have become so popular. Also shows the push/pull style-box that moves the drag link forward and back.
The stock drag link in '79-'85 models is relatively weak and another reason that high-steer and crossover steering setups have become so popular. Also shows the push/pull style-box that moves the drag link forward and back.		'79-'83 pickups used a torque rod mounted between the front axle and the frame to control axle windup. A torque rod extension bracket or adjustable torque rod is required when more than 3 inches of lift is installed. The stock drag link is shown installed between the leaf spring and the frame. The early push/pull steering box is also visible just above the frame.
'79-'83 pickups used a torque rod mounted between the front axle and the frame to control axle windup. A torque rod extension bracket or adjustable torque rod is required when more than 3 inches of lift is installed. The stock drag link is shown installed between the leaf spring and the frame. The early push/pull steering box is also visible just above the frame.		The early steering gear pushes and pulls the drag link to turn the wheels via the J-arm. The J-arm is the steering arm shown on the driver-side steering knuckle. The rear of the arm attaches to the drag link and front of the arm attaches to the tie rod.
The early steering gear pushes and pulls the drag link to turn the wheels via the J-arm. The J-arm is the steering arm shown on the driver-side steering knuckle. The rear of the arm attaches to the drag link and front of the arm attaches to the tie rod.
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