There's some incredibly challenging terrain in the state of Missouri. Much of it is concealed by seemingly impenetrable thick woods, but it's there. To traverse this environment, locals build go-anywhere machines that are rock-, mud-, and hill-friendly.
An example of one of these rigs is Mineral Point, Missouri resident Chris Harbinson's '99 Jeep TJ. In many ways, it's typical of a built TJ. It has V-8 power, a crawly transfer case, stout axles, and a flexy suspension. However, this machine, built mostly by Duncan's 4x4 of Doe Run, Missouri, has an interesting collection of components that make it unique.
We had the opportunity to see Harbinson's rig in action at the Washita ATV/MX/Jeep Park and Trails near Farmington, Missouri. The TJ adroitly and routinely negotiated a wide variety of obstacles with ease. Here's the rundown of what's lurking under the TJ sheetmetal.
Owner/Hometown: Chris Harbinson/Mineral Point, Missouri
Vehicle/Model: 1999 Jeep Wrangler
Estimated value: $60,000
Type: Chevy 383ci V-8
Aspiration: Fuel injection, Gibson headers, Flowmaster mufflers
Output, hp/torque (estimated): 420/435
Transfer Case: Atlas 4.3:1
Front: Custom 3-link, Fox 2.5 air shocks
Rear: Custom 3-link, coil springs, BDS shocks
Front: Ford Dana 60, Chevy axletubes, Yukon Gear & Axle alloy axleshafts, OX-USA axlejoints, Ford disc brakes/modified Detroit Electrac
Rear: Sterling 10.25-inch, Dodge disc brakes/Detroit Locker
Ring and pinion: Randy's Ring & Pinion 5.13:1
Wheels: 16.5x12 Stazworks double beadlocks
Tires: 44x18.50-16.5 Interco Super Swamper TSL
Under the hood is a 383ci Chevy V-8. The folks at Midwest Engines in Cape Girardeau did al
Up front, there's a Duncan's 4x4-fabbed front axle that has a high-pinion Ford Dana 60 cen
A pair of custom driveshafts with 1350 U-joints sprout from the Atlas 4.3:1 transfer case.
The TJ has a Ford "Sterling" 10.25-inch rear axle. This axle has been fitted with Yukon Ge
A custom six-point rollcage made from 2- and 15/8-inch-diameter, 0.120-inch-wall DOM mater
An RCI 20-gallon aluminum fuel cell keeps the 383ci engine supplied with gasoline. The cel
A hydraulic Mile Marker H10500 winch is bolted to a custom front bumper made from 1/4-inch
Typical of a good trail rig, all the fat has been trimmed from the exterior to increase th