Fitting Instructions

Thank you for your interest in the range of custom products produced by from Jon Attwood Customs. To ensure the best fit and finish for your new components we always recommend taking to a professional for fitting. However if you wish to take the DIY approach, please follow these detailed fitting instructions. If you have any questions whatsoever please feel to contact us here

1. Initial Inspection

  • Carefully unpack and inspect your fibreglass parts for any shipping damage.
  • Ensure all parts are present and match your vehicle's specifications.

2. Pre-Fit Preparation

  • Clean the area of your vehicle where the fibreglass part will be installed. Remove any dirt, grease, or debris that could affect adhesion or fitting.
  • Dry-fit the part to assess alignment, gaps, and potential adjustments. This step will help identify any areas requiring trimming or modifications.

3. Trimming and Adjustments

  • All installations are different, this is why your part will come with some additional length/width in areas to allow for various fitting needs. Carefully trim excess material using a Dremel tool or a fine-toothed saw.
  • Sand the edges using fine-grit sandpaper (150-320 grit) to achieve a smoother finish and ensure your desired fit.
  • Test the part again to check for improvements after trimming.

4. Sanding and Smoothing

  • Sand the entire surface lightly with 320-grit sandpaper to prepare it for priming and painting.
  • Pay special attention to edges and corners, making sure they are smooth and conform to the vehicle’s body lines.

5. Securing the Part

  • Attach the part temporarily using clamps or masking tape to secure it in place before drilling.
  • Mark the mounting points accurately and drill small pilot holes if required.
  • Use proper fasteners or adhesive as per your vehicle’s needs to secure the part permanently. Follow the manufacturer's guidelines if using bonding agents.

6. Finishing Touches

  • Fill any small gaps or imperfections with body filler and sand smooth once it has dried.
  • Wipe down the part with a tack cloth to remove any dust before priming.
  • Apply primer suitable for fibreglass, followed by your preferred paint finish.

7. Final Fit Check

  • Once painted and dry, fit the part back on the vehicle to ensure that alignment and aesthetics meet your expectations.
  • Make any final adjustments if needed.

8. Installation Completion

  • Tighten all fasteners securely and check that the part is stable and properly fitted.
  • Polish and wax the newly installed part if desired to blend seamlessly with the rest of your vehicle.

Note: Due to the nature of fibreglass, minor variations can occur. Custom fitting and adjustments are common to achieve a perfect fit. Always wear appropriate safety equipment such as gloves, goggles, and a mask when working with fibreglass materials.

For any additional support or questions, feel free to contact Jon Attwood Customs customer service via our online contact form here