MadJax King XD Lift Kit Installation Guide

Turn the key OFF, engage the parking brake, and place the front of the vehicle on jack stands under the front frame. Ensure the jack stands are properly placed under the frame to support the vehicle to avoid damage or possible injury during installation. Make sure the front is raised high enough to accommodate the new lift and larger tires. Uninstall the front wheels and remove the hubs from the spindles.

Diagram Description: Shows a golf cart front end on jack stands, with a socket wrench near a wheel hub.

Remove the front bumper with mounting brackets from the vehicle (bumper not shown for clarity). Keep for reinstallation later.

Diagram Description: Shows the front bumper area of a golf cart with bolts being removed from mounting brackets.

Uninstall the steering arm from each spindle. Retain the hardware from the steering arm.

Diagram Description: Close-up view of a spindle assembly, showing a steering arm being disconnected with a wrench.

Remove the upper bolt from front shocks, keeping the hardware. The shocks will be removed with control arms & spindles during the next step.

Diagram Description: Shows the front shock assembly being disconnected from its upper mounting point.

Uninstall the control arms from the vehicle frame. Caution: Once bolts are removed, the control arm and the entire factory suspension will be free from the cart. Keep control arm hardware; discard all other components.

Diagram Description: Illustrates the removal of control arms from the vehicle frame, showing bolts being extracted.

Install the Main Suspension Assembly to the vehicle frame using two (2) M10x35mm hex bolts, two (2) M10 lock washers, and two (2) M10 flat washers. Do NOT tighten bolts until both are hand-threaded into the Main Assembly. Snug, but do not fully tighten bolts until after the next step.

Diagram Description: Shows the Main Suspension Assembly being positioned and attached to the vehicle frame with bolts and washers. An inset shows a close-up of the connection points.

NOTE: DO NOT adjust the bushing assemblies at the end of the leaf springs. These bolts are preset to the proper tightness. It will not appear tight until the weight of the vehicle is on the suspension.

Using two (2) M10 U-Bolts, four (4) M10 flat washers, and four (4) M10 nylock nuts, secure the rear of the Main Suspension Assembly to the vehicle frame rails. Alternate tightening the nuts until torqued to 35 lb-ft (47 Nm). Torque front mounting bolts from Step 6 to 35 lb-ft (47 Nm).

Diagram Description: Shows U-bolts being used to attach the rear of the Main Suspension Assembly to the vehicle frame rails.

Using the two (2) stock M8 hex bolts and nuts from Step 5, install the new Upper A-arms as shown and torque to 35-43 lb-ft (48-58 Nm). The shock mounting bracket will be facing up and oriented to the rear as shown.

Diagram Description: Illustrates the installation of the new Upper A-arms using existing M8 hardware, with torque specifications noted.

NOTE: Grease fittings of upper A-arms after installing and before the next step.

Install the top of the new Shocks to the vehicle using the stock mounting bolt from Step 4. Attach the bottom of the Shock to the upper a-arm using two (2) M8 x 60 hex bolts, four (4) M8 flat washers, and two (2) M8 nylock nuts. Torque hardware to 30-37 lb-ft (40-50 Nm).

Diagram Description: Shows the new front shocks being mounted, connecting to the upper A-arm at the bottom and using the stock bolt at the top.

Using four (4) M10 x 80mm hex bolts, eight (8) M10 flat washers, and four (4) M10 nylock nuts, install each Spindle to the upper and lower a-arms. The steering arm of each spindle will be oriented to the rear of the vehicle and grease fitting to the rear as shown.

Diagram Description: Depicts the installation of a Spindle assembly to the upper and lower A-arms using M10 hardware. The driver's side is shown.

NOTE: Grease fittings on the back side of spindles and the ends of both upper & lower a-arms before moving on to the next step.

Attach the factory steering arm end to the Spindles using hardware from Step 3. Torque to 29 lb-ft (39 Nm).

Diagram Description: Shows the steering arm being reconnected to the Spindle assembly using the original hardware.

Using the stock hardware from Step 1, reinstall the hubs, new wheels, and tires to the vehicle. Torque the hub nuts to 84 lb-ft (144 Nm). Torque the lug nuts to 65 lb-ft (88 Nm). Remove the jack stands and lower the vehicle to the ground.

Diagram Description: Shows the reinstallation of wheels and tires onto the vehicle after the lift kit is installed.

NOTE: DO NOT attempt to align or adjust toe/camber until the rear lift is installed and the cart has been test driven.

Increasing tire size larger than the stock 18" will increase the operating speed. Take care when maneuvering at all times.

Do NOT use tire heights greater than 22" tires on this 4" Lift Kit. Exceeding tire heights larger than recommended will cause unintended speeds and performance issues.

Install the rear lift kit appropriate for the vehicle, following the installation instructions that come with the rear kit. For the Yamaha Drive2 with independent rear suspension, use kit 16-056. For the Yamaha Drive (G29) or Drive2 with a solid rear axle, use kit 16-057.

Once the rear lift is installed, set the alignment of the vehicle. On flat, level ground, use a large framing square to check and adjust the camber of each front wheel until the tire is perpendicular to the ground. To adjust, loosen the jam nuts (21mm wrench) on each side of the upper a-arm turnbuckle. Use a (19mm wrench) to turn the center of the turnbuckle in or out as needed. Continually check the camber with the framing square as you turn the turnbuckle. Once properly adjusted, tighten each jam nut out against the upper a-arm with a 21mm wrench (not against the center of the turnbuckle). Repeat on the opposite side of the vehicle.

Diagram Description: Shows a front wheel of a golf cart and a framing square being used to check camber. Another diagram illustrates adjusting a turnbuckle on the upper A-arm.

Ensure the steering wheel is straight to begin adjusting the toe of the front tires. The measurement between the center of the tread of the two front tires at the front should be 1/8"-1/4" shorter than the same measurement at the back of the tires. To adjust, loosen the jam nut on either side of each steering rack. Turn the extension to adjust in or out as needed and recheck the measurement front and back. Also, ensure that the measurement from the front of each tire to the center of the vehicle is the same on both sides and adjust accordingly. Once the toe is corrected, tighten the jam nuts on both steering arms. Test drive vehicle and check camber and toe measurements again. If needed, adjust accordingly and retighten all hardware. Loosen and adjust steering wheel to be straight if needed and re-tighten.

Diagram Description: Shows a front view of a golf cart with a tape measure indicating the toe-in measurement between the front tires. Another diagram illustrates adjusting the steering rack extension.

Place the included warning label in a highly visible area on the vehicle for all users to read before operating the vehicle (recommend foot board as shown or steering wheel). Use the additional Warning Label provided to place in view of a well protected area such as in the battery/motor compartment.

Diagram Description: Shows a warning label being applied to the footboard of a golf cart.

IMPORTANT: These instructions should be kept and stored in this cart for future reference on how to adjust toe/camber, brakes, and re-grease of front lift components.