How To Put Skateboard Trucks On: The Professional Technical Installation Guide

Installing skateboard trucks requires aligning the baseplate holes with the deck’s mounting points so that the kingpins face inward toward the center of the board. Secure the assembly by tightening eight sets of hardware in a diagonal X-pattern to ensure flush seating and prevent structural pressure cracks in the wood laminate.

Pre-Installation Inspection and Hardware Requirements

Before beginning the assembly of a skateboard, you must verify the compatibility of your components and ensure you have the specialized tools necessary for a secure mechanical bond. A skateboard deck is a precision-engineered laminate, and improper truck installation can lead to "pressure cracks"—hairline fractures around the bolt holes—which compromise the board's structural integrity and "pop."

To achieve a professional-grade setup, you must verify that your hardware length matches your deck thickness and whether or not you are utilizing riser pads. Standard skateboard decks generally require 1-inch hardware. However, if you are adding 1/8-inch or 1/4-inch shock pads or risers to prevent wheel bite, you must scale your hardware length accordingly to 1.125 or 1.25 inches.

Essential Gear and Material Checklist:

• Skateboard Deck: Ensure the grip tape is fully adhered and cured (if recently applied).
• Two Skateboard Trucks: Verify the axle width matches the deck width (e.g., 8.0" trucks for an 8.0" deck).
• Hardware Set: Eight high-tensile steel bolts and eight nylon-insert locknuts (nyloc).
• Skate Tool or Universal Tools: A 3/8-inch socket for the hardware nuts and a Phillips or Allen head screwdriver (matching your hardware).
• Optional Riser Pads: Used for vibration dampening or increased wheel clearance.
• Duration Benchmark: 10 to 15 minutes for a standard installation.
• Prerequisite Knowledge: Understanding "New School" (shorter) versus "Old School" (longer) bolt patterns, though most modern decks and trucks are cross-compatible.

The Systematic Workflow for Professional Truck Mounting

The mounting process is a sequence of mechanical alignment and tension management. Following these steps precisely ensures that your trucks stay centered and do not rattle loose during high-impact maneuvers or high-frequency vibrations common in street and park skating.

Step 1: Puncture and Prepare the Grip Tape

If you have just applied fresh grip tape, the mounting holes will be covered. You must clear these to allow the hardware to sit flush against the deck's top surface. Flip the board so the wood side is facing up and use a small screwdriver or a spare bolt to poke through the eight mounting holes from the bottom.

Once the holes are visible from the top (the gripped side), flip the board back over. Take your screwdriver and insert it into each hole from the top, rotating it slightly to "countersink" or widen the grip tape around the hole. This prevents the grip tape from bunching up when you push the bolts through, ensuring a flat surface for your feet.

Pro-Tip: For the cleanest look, use a file to lightly sand the edges of the punctured grip tape holes. This prevents the grip from peeling up over time around the hardware heads.

Step 2: Establish Correct Truck Orientation

This is the most critical technical step. For a standard skateboard, the trucks must be installed so the kingpins (the large central bolts holding the bushings) face each other. In simpler terms, the bushings of the front truck should face the bushings of the back truck.

If you install the trucks with the kingpins facing outward (toward the nose and tail), the board will "counter-steer." When you lean left, the board will turn right, making it virtually unrideable and dangerous. Double-check that the "pivot cup" (the small plastic-lined hole where the hanger sits) is facing the nose and tail of the board, respectively.

Step 3: Insert Hardware and Seat the Baseplate

Place the skateboard deck on its side or upside down. Insert the four bolts through the top of the deck for one truck. While holding the bolts in place with one hand, slide the truck baseplate over the bolts. If you are using riser pads, they must be sandwiched between the deck and the truck baseplate.

Hand-thread the four nylon-insert locknuts onto the ends of the bolts. Do not use a tool yet; hand-threading ensures you do not cross-thread the nuts, which can ruin the hardware. Repeat this process for the second truck, again verifying that the kingpin orientation is correct.

Warning: Never use hardware without nylon-insert locknuts. Standard nuts will vibrate loose within minutes of skating, leading to catastrophic equipment failure.

Step 4: The Diagonal Tightening Technique

To ensure the truck baseplate sits perfectly flat against the deck, you must use a diagonal tightening pattern, similar to how you would tighten lug nuts on a car wheel. If you tighten one side completely before the other, the baseplate may sit at a slight angle, leading to uneven turning.

1. Place the screwdriver in the bolt head on the top of the deck and the 3/8-inch socket on the nut underneath.
2. Tighten the top-left bolt halfway.
3. Move to the bottom-right bolt and tighten it halfway.
4. Move to the top-right bolt and tighten it halfway.
5. Move to the bottom-left bolt and tighten it halfway.
6. Repeat this cycle until all four bolts are snug.

The goal is to pull the head of the bolt just deep enough into the grip tape so it is flush with the deck. You should not feel the bolt heads under your feet, but you should not sink them so deep that they begin to crush the wood fibers excessively.

Step 5: Mechanical Calibration and Kingpin Adjustment

Once the trucks are securely mounted to the deck, you must check the tension of the kingpin nut. This nut controls how much the trucks turn. From the factory, trucks are often tightened to a neutral setting, but this may not match your weight or skating style.

Use the 9/16-inch socket on your skate tool to adjust the kingpin nut. Turning it clockwise (right) compresses the bushings, making the board more stable at high speeds but harder to turn. Turning it counter-clockwise (left) loosens the bushings, allowing for sharper, more responsive turns. Ensure that both trucks have roughly the same amount of thread showing above the kingpin nut to maintain consistent handling between the front and rear of the board.

Hardware Selection and Geometry Specifications

The relationship between bolt length and deck thickness is vital for safety. Bolts that are too short will not fully engage the nylon locking mechanism of the nut, while bolts that are too long create a snag hazard and look unprofessional. Use the following table to determine the correct hardware specifications for your specific setup.

Common Installation Failures and Field Fixes

Even experienced skaters encounter mechanical issues during assembly. Recognizing the root cause of these failures allows for rapid correction and prevents permanent damage to your hardware or deck.

• Scenario: Hardware "Spinning" in the Hole
  
  
  • Root Cause: The grip tape hole was not cleared properly, or the bolt head has stripped the surrounding wood, losing its grip.
  • Actionable Fix: Use a wider Phillips head screwdriver and apply significant downward pressure while tightening the nut from below. If the hole is severely stripped, use a small piece of a toothpick or a sliver of wood in the hole to provide friction for the bolt head.
• Scenario: Truck Baseplate Rattling After Tightening
  
  
  • Root Cause: Usually caused by "bottoming out" the nut on a bolt that is too long, or the nylon in the locknut has worn out and no longer holds tension.
  • Actionable Fix: Replace the locknuts with fresh ones. If the bolts are too long, add a thin shock pad to bridge the gap or replace the hardware with the correct 1.0" length.
• Scenario: Stress Cracks Appearing Around Bolts
  
  
  • Root Cause: Excessive torque applied during installation or uneven tightening patterns, causing the baseplate to "pinch" the wood laminates.
  • Actionable Fix: Loosen the hardware slightly. Ensure you are using the diagonal tightening pattern. To prevent further damage, install shock pads (rubberized 1/8" pads) to distribute the load more evenly across the deck surface.

Frequently Asked Questions

Which direction should the trucks face on a skateboard?

On a standard skateboard, the kingpins (the large bolts with bushings) must face inward toward the center of the board. The pivot cups of the baseplates should point toward the nose and tail. If the kingpins face outward, the board will turn in the opposite direction of your lean.

How tight should the mounting hardware be?

The hardware should be tightened until the bolt head is flush with the top of the deck. You should not be able to feel the bolt protruding above the grip tape. Avoid over-tightening to the point where the bolt head sinks deeply into the wood, as this causes pressure cracks and weakens the deck.

Do I need to use riser pads when putting trucks on?

Riser pads are optional and primarily used to prevent "wheel bite," which occurs when the wheels touch the deck during a sharp turn and stop the board abruptly. If you are using wheels larger than 54mm, riser pads are recommended to provide the necessary clearance between the wheel and the wood.

Can I reuse hardware from an old skateboard?

While hardware is reusable, the nylon inserts inside the locknuts eventually wear out and lose their "locking" capability. If you can thread the nut onto the bolt easily with your fingers all the way to the base, the nylon is spent, and you should purchase new hardware for safety.

Optimize Your Ride Today

Setting up your skateboard correctly is the foundation of a safe and high-performing ride. Once your trucks are mounted and calibrated, you are ready to hit the pavement with confidence in your equipment's mechanical integrity.