Greg Kennon’s Tombstone buggy is exactly what we like about the Wide Open Design Rocketship chassis platform. It's not overloaded with unnecessary extras, and it's not trying to be something it doesn't need to be. This is a purpose-built rockbouncer with the money invested in the places that actually matter: chassis geometry, suspension, steering, drivetrain strength, visibility, storage, cooling, and driver control.
Every part on this build has a job and every system was chosen because it helps the buggy work better on the trail. It is a clean, simple, serious off-road machine built around one of the most capable rock bouncer chassis platforms Wide Open Design has ever produced.
Built Around the Rocketship Rock Bouncer Chassis
The heart of Tombstone is the Wide Open Design Rocketship rock bouncer chassis. This platform was designed for drivers who want a buggy that feels planted, predictable, and fun to drive in real off-road terrain.
The Rocketship chassis is low, compact, and built around proper suspension packaging. The seating position drops the driver down deep into the chassis, which helps the buggy feel more controlled on climbs, side hills, ledges, and fast rough sections. Instead of sitting high and feeling like you are riding on top of the buggy, Tombstone puts the driver down inside the machine.
That lower seating position is one of the biggest advantages of this chassis. It improves the feel behind the wheel, helps with confidence in off-camber terrain, and gives the buggy the planted feel that separates a well-designed rockbouncer from a pile of expensive parts.
Visibility was also a major part of the design. From the driver’s seat, Tombstone gives you a clear view of the trail, the tires, and the obstacles in front of you. That matters in a rock bouncer. Whether you are picking your way through a technical rock section or lining up for a climb, being able to see what the buggy is doing makes the whole machine easier and more fun to drive.
BluePrint 427 Power
Tombstone is powered by a BluePrint 427 LS-based engine that fits the personality of the build perfectly. It has enough power to set you back in the seat when you want to get after it, but it is still manageable enough for technical rock crawling.
That balance matters. A rock bouncer doesn't just need horsepower. It needs usable power. The engine needs to be responsive, predictable, and controllable when the terrain gets tight. Tombstone has the kind of power that makes the buggy exciting without making it a handful every time you need to crawl, turn, or ease through a technical section.
Front and Rear Steering
One of the biggest things that makes Tombstone fun to drive is the front and rear steering setup. Rear steer changes the entire personality of a rockbouncer. It makes the buggy more maneuverable, more playful, and more capable in tight terrain.
On a trail, rear steer lets the driver place the buggy where it needs to be instead of fighting the wheelbase. In rocks, it helps the buggy pivot, correct, climb, and recover from bad lines. In the woods, it makes a full-size rock bouncer feel much smaller and easier to manage.
For drivers who have never owned a front and rear steer buggy, it is hard to explain how much it changes the experience. Once you have it, it is hard to go back.
Suspension Built for the Trail
One of the things that makes Tombstone stand out is its suspension geometry. Instead of chasing the biggest or most complex shock package available, this build uses a well-balanced system designed around the Rocketship chassis geometry. Up front and out back, Radflo coilovers work alongside Radflo bypass shocks to deliver a smooth, controlled ride, while the rear trailing arm suspension with Wide Open Design billet trailing arms provides excellent stability, articulation, and traction over ledges, trail chop, and rough terrain.
Supporting the system are Radflo hydraulic bump stops, which absorb hard impacts at full compression and help protect the chassis, suspension, and shocks from harsh bottom-outs. The combination creates a buggy that is predictable, comfortable, and capable of spending long days on the trail—not just making one hard climb. It's a suspension package built around real-world performance, giving Tombstone the confidence to handle technical rock crawling, fast trail sections, and everything in between.
43" SX Stickies
The buggy sits on 43" SX Stickies, giving Tombstone the traction and ground clearance needed for serious rock crawling and hard trail use. Big sticky tires are part of what makes a modern rock bouncer so capable, but they also place serious load on the chassis, steering, axles, suspension, and driveline.
That is why the whole build has to work as a system. Tombstone was not built by simply bolting large tires onto a chassis and hoping everything else would survive. The suspension, steering, driveline, and chassis were all selected to handle the way this buggy is meant to be used.
Why Tombstone Matters
Tombstone is an important build for Wide Open Design because it shows exactly what the Rocketship rockbouncer chassis is meant to be.
Every dollar in this build was spent where it matters most—on the chassis, suspension, steering, driveline, and the practical features that make a buggy enjoyable to own and drive. The Rocketship chassis delivers a low center of gravity, excellent visibility, proven trailing arm suspension, front and rear steer, and just the right amount of horsepower to keep the buggy fun, predictable, and reliable.
What truly separates Tombstone is its attention to the details that matter on the trail. A 20-gallon fuel cell provides the range for long days of wheeling, while the integrated toolbox offers convenient storage for tools, recovery gear, and spare parts without sacrificing cockpit space. Combined with clean packaging and practical engineering, Tombstone is the blueprint for an American-built rock bouncer that is equally capable of tackling technical trails, spending all day on the mountain, and making it back home. It wasn't built to impress in photos—it was built to be driven.
| Tombstone Rocketship Custom Chassis Build | ||
|---|---|---|
| Category | Component | Product |
| Chassis | Chassis Platform | Wide Open Design Rocketship |
| Powertrain | Engine | BluePrint Engine Supply GM LS Compatible 427 c.i. Pro Series Engine |
| Engine Horsepower | 605 HP | |
| Engine Torque | 565 lb-ft | |
| Radiator / Fans | Wide Open Design 38x19 Race Radiator Cooling Package | |
| Exhaust | Sanderson GM LS Block Hugger Headers | |
| Muffler | Magnaflow Exhaust Muffler – 5" x 8" Oval with TIG Welded Stainless Steel Tubing | |
| Drivetrain | Transmission | TH400 |
| Transmission Shifter | Winters TH400 Shifter | |
| Transfer Case | Atlas 3.0 Race Case with Upgraded 1.5" Main Shaft Pin | |
| Body / Interior | Steering Column | Wide Open Design Tilt Steering Column |
| Brake System | Hydroboost Brake Kit with Wilwood Compact Master Cylinder | |
| Seats / Harnesses | Custom PRP Alpha Seats with PRP 2" Wide 5-Point Harnesses | |
| Skid Plate | 6061 3/8" Thick Aluminum Skid Plate with WOD Belly Pan Tabs | |
| Fire Safety | H3R Halon Fire Extinguisher & SafeCraft Fire Suppression System | |
| Suspension | Suspension Type | Triangulated 4-Link Front and Rear |
| Rear Upper Link Bars | 2" Diameter 7075 Aluminum Link Bars | |
| Front Lower Link Bars | 2.25" Diameter 7075 Aluminum Link Bars | |
| Rod End Kits | Chromoly Four Link Rod End Kit – 1-1/4"-12 Shank with 1" High Angle Heim Joint Spacer | |
| Trailing Arms | Wide Open Design Billet Trailing Arms | |
| Front Axle Truss | WOD 14-Bolt Driver Drop Front Axle Truss | |
| Rear Axle Truss | WOD Universal Rear Axle Truss | |
| Front Coilovers | 14" Travel Radflo 2.0 Emulsion Coilover Shocks | |
| Front Bypass Shocks | 14" Travel Radflo 2.5" Bypass Shocks with Remote Reservoir – 3 Tube | |
| Rear Coilovers | 16" Travel Radflo 2.0 Emulsion Coilover Shocks | |
| Rear Bypass Shocks | 16" Travel Radflo 2.5 Bypass Shocks with Piggyback Reservoir – 3 Tube | |
| Bump Stops | Radflo 2.0 Hydraulic Bump Stops | |
| Rear Sway Bar | Wide Open Design Trail Series Sway Bar | |
| Limit Straps | WOD Limit Straps | |
| Driveshafts | Driveshafts | WOD 1410 Driveshaft Builder Kit |
| Carrier Bearing Shaft | WOD 1410 Carrier Bearing Shaft Builder Kit | |
| Axles | Front Axle Housing | 14 Bolt Front Axle Housing |
| Front Inner C’s / Knuckles | Crane Axle Magnum Knuckle Kit | |
| Front Differential / Locker | GM 14-Bolt Steel Spool – 10.5" Axle, 4.10 & Down, 40 Spline | |
| Front Ring & Pinion | 5.13 GM 14-Bolt Ring & Pinion Gear Set – 10.5" | |
| Front Differential Cover | Crane 13 Bolt Cover | |
| Front Axle Shafts | RCV Big Bell Axle Set for Crane Magnum Knuckles | |
| Front Drive Flanges / Hubs | Crane Axle ’05+ Ford Super Duty Unit Bearing Covers – 32 Spline (Pair) | |
| Front Steering Arms | Crane Magnum High Steer Arms | |
| Front Brakes | Crane Axle Front Unit Bearing Wilwood 4 Piston Lightweight Brake Kit | |
| Rear Axle Housing | 14 Bolt Front Axle Housing | |
| Rear Inner C’s / Knuckles | Crane Axle Magnum Knuckle Kit | |
| Rear Differential / Locker | GM 14-Bolt Steel Spool – 10.5" Axle, 4.10 & Down, 40 Spline | |
| Rear Ring & Pinion | 5.13 GM 14-Bolt Ring & Pinion Gear Set – 10.5" | |
| Rear Differential Cover | Crane 13 Bolt Cover | |
| Rear Brakes | Crane Axle Front Unit Bearing Wilwood 4 Piston Lightweight Brake Kit | |
| Tires | Super Swamper 43" SX Stickies | |
| Wheels | Battle Born Delta Forged Beadlock Wheels – 8 Lug | |
| Trail Equipment | Fuel Cell | Wide Open Design Rocketship Fuel Cell |
| Tool Box | Wide Open Design Rocketship Tool Box | |
| Winch | Warn RC9 Winch | |
| Lighting | KC Head Cyclone Head Lights | |
Questions or Comments?
We'd love to hear your thoughts or answer any questions.
