Four Wheeler|July 2021
Recap of the 39th Annual O’Reilly Auto Parts Fall 4-Wheel Jamboree Nationals
Brian Shelton

Immediately upon entering the Fall Jambo, we were greeted by a massive bumper-to-bumper line of 4x4s in the Cruise Lane.

We were stoked when we learned that the 39th Annual O’Reilly Auto Parts Fall 4-Wheel Jamboree Nationals was a go. Taking place in Indianapolis, Indiana, at the Indiana State Fairgrounds, the event, often referred to simply as the “Fall Jambo,” was set to bring more than 2,000 4x4s to the Heartland and we couldn’t wait to attend. Jam packed with a multitude of events beginning on Friday and continuing all the way through Sunday afternoon, the Fall Jambo was nirvana for 4x4 enthusiasts. There was just about everything for every type of 4x4 fan at the event, including a Performance Marketplace, Show-N-Shine, General Tire Monster Truck Show, General Tire Burnout Competition, mud bog racing, the Tough Truck Challenge, mega trucks, a Dyno Challenge, monster truck rides, and lots more.

We spent a lot of time checking out Kenda Tires’ ’91 Chevy K5 Blazer. It’s outfitted with a 6.2L LS engine mated to a 4L80E, paired with a combination behemoth transfer case and underdrive box. The rig sits on heavily modified 1-ton axles with an Eaton ELocker-equipped GM Dana 60 upfront and an Eaton Detroit Locker inside the GM 14-bolt in the rear. Bilstein M9100 2.5-inch bypass shocks and coil overs keep the ride as smooth as possible, even in extreme conditions.

Cruising the Cruise Lane

Immediately upon entering the Indiana State Fairgrounds, we were greeted by bumper-to-bumper traffic consisting of all types of 4x4s lined up in the Cruise Lane. This was an organized part of the event that had its own lane dedicated to cruising around the fairgrounds the entire time the Fall Jambo was open. It was sensory overload. One minute there’s a rock buggy on bags flexing its suspension right in front of you, then there’s a lifted Chevy K5 Blazer with an engine loping so heavy you can’t help but stop and listen to the sweet sound.

From Show-N-Shine to a Dyno

The Performance Marketplace stretched for several blocks and consisted of vendors offering almost everything imaginable, including tools, tires, wheels, swag, tuners, off-road lighting, and much more. As we ventured farther, the Performance Marketplace gave way to the Show-N-Shine area packed with parked 4x4s. The area included everything from numbers matching, all-original 4x4s with zero defects to total Frankenstein one-off custom rigs fully built and ready to hit the trail. As we continued, we discovered the mobile dyno setup. We moseyed over and joined the crowd of spectators to watch a sleeper second-gen Cummins-powered Dodge Ram with a screaming turbo as it took a dyno pull. Continuing, we spent several hours admiring all the different 4x4s in the Cruise Lane and Show-N-Shine before heading to the grandstands.

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