THOUSANDS of hard core Jeep enthusiasts will be heading to an annual event in Utah this weekend for a week-long immersion in extreme off-roading.

Welcoming them to the 53rd Easter Jeep Safari at the town of Moab in the eastern United States will be six new custom built vehicles, including one called the Jeep M-715 Five-Quarter.

Described as "a seamless blend of vintage and modern components", the term "Five-Quarter" is a historical nod to Jeep trucks of the past that were one and one-quarter tons - or "five quarters".

Starting with a 1968 M-715, this Gladiator-based military vehicle was re-imagined with design and functional improvements to its chassis, drivetrain and cargo configurations, resulting in a truly capable showpiece.

On the exterior, the original front sheet metal was removed and a full carbon-fibre front end takes its place.

Also, an all-new, six-foot custom-fabricated aluminium bed was installed that has been perforated and re-imaged using a mix of water jet cut panels and wood slats.

Headlights have been replaced with new HID lights along with LED auxiliary lights for vast outward visibility. Rearward, LED halo lights have been installed in the original tail light buckets.

Inside, new Jeep Wrangler seats free of headrests have been installed for a sleek, low-back visual. Additionally, water-jetted aluminium components make up a new lightweight and premium instrument panel as well as door panels. A repurposed vintage 8-71 supercharger now serves duty to encase the transmission and transfer case shifters, and the floors have been bed-lined for enhanced durability.

Power is provided to the Jeep M-715 Five-Quarter by a 6.2-liter supercharged "Hellcrate" HEMI V-8 engine which produces more than 700 horsepower.