An Overall Fitting Guide from Direct4x4
Buying side steps or running boards for your 4x4 or SUV is one of the easiest ways to improve day-to-day access, family usability and the overall look of your vehicle.
But if you are shopping online, there is one question that comes up more than any other – and it is also one of the biggest reasons people delay placing an order.
How do these actually fit to my vehicle?
At Direct4x4, we speak to customers every day who want the confidence that the side steps or running boards they are buying will fit properly, install safely and will not require any permanent modification to their vehicle.
This full fitting guide explains exactly how our side steps are installed, how the mounting system works and why our vehicle-specific, no‑drill design makes buying online far safer and more predictable for your 4x4, SUV or pickup.
First of all: no drilling is required
We never drill your vehicle’s chassis.
All Direct4x4 side step and running board kits are designed to use pre-existing mounting points already present in the chassis. These mounting locations are built into the vehicle by the manufacturer specifically for accessories and structural fixings.
By using these original mounting points, we avoid permanent modification, preserve manufacturer corrosion protection and help protect your vehicle’s long‑term value.
For many customers – especially owners of newer vehicles, leased vehicles and fleet vehicles – avoiding drilling is one of the most important factors when choosing aftermarket side steps.
How our side steps mount to your vehicle
Although every make and model is slightly different, the overall fitting process for Direct4x4 side steps is broadly the same across most 4x4s, SUVs and pickup trucks.
The system is based around three key components:
- Vehicle-specific mounting brackets
- Pre-existing chassis mounting points
- Pre‑engineered fixings and running board channels
This approach allows installers to achieve a strong, repeatable and factory-style installation without guesswork or fabrication.
Step 1 – Locate the pre-existing mounting points
Most vehicles have two mounting points down each side of the chassis. Some long wheelbase vehicles and vans may have three mounting points per side.
These mounting locations may already contain captive nuts, or they may simply be open holes. In many cases the mounting points are hidden behind plastic undertrays or sealed using small rubber grommets. The first stage of installation is identifying and exposing these pre-existing fixing points.
Because every vehicle platform is slightly different, the exact positions will be shown clearly in the fitting instructions supplied with your side step kit.
Step 2 – Removing undertrays where required
Some vehicles are fitted with plastic undertrays or sill covers that sit directly in the area where the side step brackets must be installed.
If this applies to your vehicle, the undertray is temporarily removed to allow clear access to the mounting holes and to position the brackets correctly.
Once the brackets and running boards have been fitted, the undertray is normally refitted. In certain cases, a small slot may be trimmed in the plastic so the bracket can pass through cleanly and neatly.
This is completely normal and does not affect the protection or operation of the undertray.
Step 3 – Positioning the brackets
Direct4x4 side steps are supported by vehicle‑specific steel brackets.
These brackets are designed and engineered to match the exact chassis layout of each vehicle and to provide the correct step height, clearance and load distribution.
During installation, the brackets are offered up to the chassis and aligned with the pre-existing mounting holes.
It is important that the brackets are installed in the correct orientation as shown in the supplied fitting instructions. On rare occasions, bracket identification stickers may be incorrect, so the instructions should always be followed to confirm the correct positioning.
Step 4 – How T‑bolts secure the brackets
Most Direct4x4 side step kits use T‑bolts to secure the brackets to the chassis. A T‑bolt is a specially designed fixing that has a flat steel plate welded to the head of the bolt.
This flat plate slides into the cavity above the mounting hole in the chassis and bridges across the opening. The threaded section then drops down through the hole and allows the bracket to be tightened securely.
This creates a strong anchor point without drilling, welding or modifying the vehicle structure.
In many installations, only the outer fixing point is secured, while the inner part of the bracket pivots neatly against the inner sill structure to provide additional support.
Step 5 – Fitting the running boards
Once the brackets are securely mounted to the chassis, the running boards themselves can be installed.
On the underside of each running board are mounting channels containing pre‑installed sliding nuts and bolts. These fixings are loosened and slid into alignment with the brackets before the board is lifted into position.
The running board is then aligned parallel to the vehicle sill and secured to the brackets. Final positioning is checked before all fixings are tightened fully.
This channel‑based mounting system allows precise adjustment and ensures a clean, straight installation on both sides of the vehicle.
Step 6 – Refitting undertrays and final checks
After the boards are installed, any undertrays that were removed during fitting are refitted to their original positions.
All bolts, brackets and fixings are then checked to confirm that the steps are securely mounted and correctly aligned.
A final inspection ensures that the steps sit evenly, do not interfere with door operation and provide safe, stable access to the vehicle.
Are the steps universal?
This is one of the most common questions we receive.
The running boards themselves are often shared across several makes and models. The main difference between applications is usually the length of the board, which is selected to suit different wheelbases.
The brackets, however, are normally vehicle‑specific.
They are designed to match the exact mounting locations and chassis profile of each vehicle platform.
Because many manufacturers now share vehicle platforms, it is increasingly common for a single bracket set to fit multiple models built on the same underlying chassis architecture.
This is why it is always important to confirm compatibility before ordering.
Why our no‑drill system matters
A no‑drill fitting system offers significant advantages for both customers and installers.
- It preserves manufacturer corrosion protection
- It avoids weakening chassis structures
- It helps keep vehicles within manufacturer accessory guidelines
- It protects resale value
- It allows the steps to be removed later without permanent damage
For fleet operators and leased vehicles, this is particularly important, as permanent modification is often not permitted.
Can I fit them myself?
Many customers choose to fit their own side steps if they are confident working under a vehicle and have suitable lifting equipment. You can find PDF and video fitting instructions for most of the vehicles that we support here.
However, because of vehicle weight, access requirements and the need for correct torque settings, professional installation is recommended wherever possible.
A professional fitter will also ensure that the brackets are positioned correctly and that all fixings are tightened safely and evenly.
Direct4x4 also offer a full professional side step fitting service at our workshop in Derby. You can find more information here.
Important safety and care information
Ensure you have received all necessary components before starting installation. If any parts are missing or incorrect, please contact us immediately before fitting.
Avoid using TFR (Traffic Film Remover) products. These can damage protective coatings, accelerate corrosion and may invalidate your warranty. Clean your side steps and brackets using mild automotive shampoo and water only.
For safety, re‑check all bolts and brackets 7 days after installation. After this, inspect all fixings every 3 months and check for tightness, movement or signs of corrosion.
Common questions before buying
Do I need special tools?
Basic hand tools are normally sufficient, but ramps or a vehicle lift make the installation significantly easier and safer. A dia cutter could be handy for cutting plastic undertrays.
Will the steps interfere with jacking points?
Correctly designed brackets avoid jacking locations and lifting points.
What if my vehicle has additional underbody protection?
Minor trimming to undertrays is sometimes required and is completely normal.
Will fitting side steps affect my vehicle insurance/MOT/warranty?
To our knowledge, no. However, it is obviously your responsibility to ensure the safety of the vehicle and check with your insurer before purchasing.
Why this fitting method works so well for ecommerce customers
When buying vehicle accessories online, confidence is everything.
By using vehicle‑specific brackets, pre-existing mounting points and pre‑engineered hardware, much of the uncertainty around compatibility and installation is removed.
Installers do not need to fabricate parts or modify the vehicle during fitting, making the installation process predictable and repeatable.
This approach also reduces fitting time and avoids unexpected issues during installation.
TL;DR – Quick review
In short:
- No drilling is required
- Brackets bolt directly into pre-existing mounting points
- T‑bolts provide secure anchoring without chassis modification
- Running boards attach using integrated sliding channel fixings
- Undertrays are refitted once installation is complete
- Brackets are engineered for your specific vehicle platform
Need help choosing the right side steps?
We understand that confirming compatibility across makes, models and trim levels can sometimes be confusing.
If you would like help confirming which brackets fit your vehicle, which step length is correct or whether your model has any special fitting considerations, please contact our support team here.