It takes all types to make the off-road world go round. This gentleman’s customized rock-bouncing Jeep is the subject of this video feature. Built sturdy and from the southern U.S., it’s obvious this green Jeep Wrangler went through a big overhaul to become the master rock crawler it is today.

Its owner swapped a trusty old 4BT into his Jeep, and completed the package with a four-speed Ford tranny and an NP205 transfer case. For the axles, he used one-ton units on the front and rear “cut to fit under a Jeep,” with air locker differentials in the front and rear for ultimate traction.

In the end, what he has is a capable crawler that looks like a blast to drive. And that 4BT is undoubtedly a major factor in how well that Wrangler can wrangle the rocky, muddy patches of the terrain.

Commanding over 260 pound-feet of torque and 105 HP in stock form, the 4BT has been a popular motor for conversions for a variety of applications since its introduction back in 1989, when Cummins and Dodge Ram were knocking Ford and GM on their butts with a turbocharged, direct injection engine never before seen in a factory consumer vehicle. It took the other big guys a while to catch up, but the 4BT and its big brother 6BT have proven over twenty-five years (and going) just how popular lots of torque and power in a little package is to all of us gearheads.

Unfortunately, there’s not a whole of information out there on the owner or this Jeep. Nevertheless, we’re happy to see him having fun with his rig where the pavement ends and nature begins. Got a cool conversion of your own? Feel free to share a story or two about it in the comments section below.