Step-by-Step: Installing a 2.5-Inch Lift Kit with Remote Reservoir Shocks on a Toyota 4Runner

Quick Answer

Installing a 2.5-inch lift kit with remote reservoir shocks on a Toyota 4Runner is a detailed DIY project that requires proper planning, the right tools, and careful attention to suspension geometry. Follow the steps below to complete the install safely and avoid common mistakes that can lead to poor ride quality or premature wear.

Upgrading your Toyota 4Runner with a 2.5-inch lift kit and remote reservoir shocks transforms its off-road capability and on-road comfort. Remote reservoir shocks provide extra oil capacity and better heat dissipation, which means consistent damping during long trails or heavy loads. This guide walks you through the installation process step by step, highlighting common pitfalls and checkpoints along the way.

Before you start, gather the necessary tools: floor jack, jack stands, torque wrench, socket set, spring compressors, and penetrating oil. Also, review the manufacturer's instructions for your specific lift kit and shock set. If you're using a complete set like the King Shocks 2.5 Performance Coilovers with adjustable remote reservoirs for the 2025-2026 4Runner, verify that all components match your vehicle's drivetrain (4WD or RWD).

Preparation and Safety

Start by parking the 4Runner on a flat, level surface and engaging the parking brake. Loosen the lug nuts on all four wheels before jacking up the vehicle. Use a floor jack to lift the front and rear, then secure it with jack stands. Never rely on the jack alone—safety is non-negotiable when working under a vehicle.

Before removing anything, spray all bolts and nuts with penetrating oil and let them soak. This is especially important for suspension components that have seen years of road salt and grime. Also, disconnect the battery if you plan to work near any electronic sensors or wiring. Take photos of the stock suspension for reference—they'll help during reassembly.

• Always use jack stands rated for your vehicle's weight.
• Keep a torque specification chart handy for all bolts you'll be tightening.

Removing the Stock Shocks and Springs

Begin with the front suspension. Remove the wheels and use a jack to support the lower control arm. This relieves tension on the shock and spring assembly. Disconnect the sway bar end links and any brake line brackets that might interfere. Then, unbolt the top strut mount and the lower shock bolts. Carefully lower the assembly and remove it from the vehicle.

For the rear, remove the wheels and support the rear axle with a jack. Unbolt the lower shock mounts and the upper mounts, then remove the stock shocks. If you're replacing coil springs, use spring compressors to safely remove them from the assembly. Never attempt to disassemble a spring without proper compression tools—it's extremely dangerous.

• Label all bolts and components as you remove them to simplify reassembly.

Preparing the New Lift Kit Components

Before installation, unpack your new lift kit and verify that all parts are present. For a complete set like the King Shocks 2.5 Performance Coilovers with adjustable remote reservoirs, check the coilovers, rear shocks, reservoir mounting brackets, and any included hardware. If anything is missing, contact the manufacturer before proceeding.

Set the preload on the coilovers according to the instructions. This determines the ride height and initial spring tension. Use a spanner wrench to adjust the spring perch. Also, decide where to mount the remote reservoirs. Common locations are the frame rails or inner fenders, but ensure they're away from moving parts and exhaust heat. Test-fit the brackets before final tightening.

• Adjustable remote reservoirs let you fine-tune damping later, so don't skip the initial setup.

Installing the Front Coilovers

With the new coilovers assembled, position them in the front suspension. Lift the lower control arm with a jack to align the lower mount, then insert the bolts. Attach the top mount to the strut tower and tighten to the manufacturer's torque specs. Reconnect the sway bar end links and brake line brackets. Ensure the coilover sits straight and doesn't rub against anything.

Once both front coilovers are in place, install the remote reservoirs. Mount them securely using the provided brackets, then route the hoses away from sharp edges and moving parts. Double-check that the hoses aren't kinked or stretched. After everything is bolted down, torque all fasteners to spec.

• Check for clearance between the reservoir hoses and the upper control arm at full suspension travel.

Installing the Rear Shocks and Reservoirs

Move to the rear suspension. Install the new shocks by aligning the upper mount first, then the lower mount. Tighten the bolts to the specified torque. If your kit includes remote reservoirs for the rear, mount them on the frame or a reinforced area. Make sure the hoses are routed neatly and won't get pinched when the axle articulates.

If you're also replacing rear springs, install them now. Use a jack to compress the axle slightly to ease spring placement. Ensure the spring seats are clean and the springs are oriented correctly. Once everything is in place, lower the vehicle to the ground and begin the settling process.

• Leave the suspension bolts slightly loose until the vehicle is on the ground and settled, then torque them.

Post-Installation Checks and Alignment

After the lift is installed, lower the 4Runner and let it settle. Rock the vehicle gently to help the suspension settle. Then, check all bolts for proper torque. Inspect the reservoir hoses for any signs of rubbing or stress. Test the suspension by bouncing each corner and listening for unusual noises.

A lift changes the alignment angles, so a professional alignment is essential. This ensures proper tire wear and steering response. Also, check the brake lines and ABS sensor wires for adequate slack—lifting the vehicle can stretch them. If needed, install longer brake lines or relocation brackets. Finally, take a short test drive to evaluate ride quality and handling.

• Re-torque all suspension bolts after the first 100 miles of driving.

Installation Steps at a Glance

1. Prepare the vehicle: Park on level ground, loosen lug nuts, lift and secure with jack stands. Spray bolts with penetrating oil. Checkpoint: Ensure the vehicle is stable before working underneath.
2. Remove stock components: Remove wheels, support control arms and axle, disconnect sway bar links and brake brackets, then unbolt shocks and springs. Checkpoint: Label parts and take photos for reference.
3. Install front coilovers: Set preload, mount coilovers, attach top and lower mounts, reconnect sway bar, and install remote reservoirs. Checkpoint: Verify reservoir hose routing and clearance.
4. Install rear shocks: Mount rear shocks and reservoirs, install springs if needed, and route hoses without kinks. Checkpoint: Ensure hoses don't rub or pinch during axle travel.
5. Final checks and alignment: Lower vehicle, settle suspension, torque all bolts, inspect for clearance, and get a professional alignment. Checkpoint: Re-torque after 100 miles and test drive.

Product Facts

• King Shocks 2.5 Performance Coilovers w/ Adjustable Remote Reservoir + Rear Adj Reservoir Shocks Set for 2025-2026 Toyota 4Runner 4WD RWD w/2-2.5: This complete set includes front 2.5 Performance Coilovers with adjustable remote reservoirs and rear adjustable reservoir shocks, engineered for both 4WD and RWD models. Having a matched set from the same manufacturer ensures consistent tuning and simplifies installation, as all components are designed to work together.
• King Shocks 2.5 Performance w/ Remote Reservoir Shocks Set: This set includes high-performance shocks with a remote reservoir for enhanced oil capacity and consistent damping, featuring a 2.5-inch body diameter. The remote reservoir design helps dissipate heat during demanding off-road use, maintaining performance and reducing the risk of shock fade.

Installing a 2.5-inch lift kit with remote reservoir shocks on your Toyota 4Runner is a rewarding project that can significantly improve off-road performance and ride comfort. By following these steps and paying attention to the checkpoints, you'll avoid common mistakes and ensure a safe, durable installation. If you're unsure about any step, consult a professional mechanic—especially for alignment and final torque checks.