Narrator: This is pro off-road racer Casey Currie climbing upward at almost 90 degrees in a Jeep Gladiator Rubicon. While this vehicle is modified with 42-inch tires and a more flexible suspension ...

Forget about the Jeep Wrangler Rubicon 392 and its embarrassing 6.4 ... This particular Jeep was almost immediately sent off for a custom rebuild once it left the Jeep factory.

The custom build recently ... animal on a drag strip, too. The Jeep recently traded hands on Bring a Trailer, fetching $34,000. Sure, the current Wrangler Rubicon 392 with its 6.4-liter Hemi ...