Vehicle Upfitting

You've heard of off roading...are you ready for Upfitting?

An upfit is a set of vehicle accessories or modifications for an existing vehicle that are customized to the owners needs. Upfits can include upgraded suspension, Lighting, communication, storage, racks, tents, and more. Everything else in your life is personalized to your tastes, shouldn't your vehicle be too?

In Montana, a lot of our passions involve the outdoors. If your hobbies require a vehicle to either help get you to your destination or help improve the experience of your destination then upfitting is the solution.

If you run a business and need your fleet to go above and beyond typical capabilities ask us about upfitting options to improve performance. As an individual, improvements to your vehicle can make life easier and more enjoyable. With J&K Customs, everyone can reap the benefits of vehicle upfitting!

Parts & Accessories

There are a lot of "parts" on the market, but knowing what parts work better than others and more importantly what parts work with other parts, is a core fundamental of creating a high quality vehicle that can perform the way you want it to for years to come.

Our 5000 sq ft showroom is packed with ready made vehicles for either on road or offroad fun. We're stocked with parts and accessories to help anyone figure out their work, play, and show vehicle needs.


Our in house fabrication department, led by Shop Manager Casey, is constantly expanding. We have the ability to customize just about anything made from various types of metal and plastic. We can also create custom parts from start to finish.



LINE-X® Spray-On Bedliners provide unmatched protection for your vehicle with the toughest, boldest, and most durable bedliners on the market. Expertly sprayed by highly trained technicians, you can rest assured it's been done right. We're so confident in LINE-X quality that we back our bedliners with a lifetime warranty, giving you complete peace of mind. LINE-X bedliners are designed to meet the needs of every truck owner, whether you're a farmer, hunter, or weekend warrior.