The duPont Registry is home to so many toys that I will never afford, this $225,000 Jeep Wrangler pictured above is no exception. It’s an absolutely incredible machine and build. I’d love to buy it and take it to this year’s King of the Hammers, it would probably have a decent chance of winning. The list of custom parts, performance upgrades, etc… is unbelievable, you can check it out below.

The heavily modified Jeep Wrangler, dubbed Project Rattletrap, is a ground-up custom job that took Martin Barkey Racing Products a year and a half to put together. The part list is incredible but the real star is the engine, a twin-turbo 5.9-liter 12-valve Cummins diesel that puts out 500+ Horsepower with 1,000+ plus lb-ft of torque.

Here are a few great videos of the Rattletrap:


Suspension and Steering
• Summit Machine large Jimmy Joint rod ends throughout suspension
• Summit Machine threaded tube adapters & jam nuts
• Suspension control arms are 2-1/4” x .250 wall DOM lower links & 2” x .250 wall upper links
• Pure Performance 2-5/8” Prodigy Coil-Over Shocks, 16″ Rear travel, 14″ Front travel
• Daystar Products Stinger bump stops
• Northwest Fab high steer arms w/ 6 stud mounting
• High steer arms modified to tie into steering knuckle tie rod mount & positions tie rod for high clearance
• Custom tie rod& drag link w/ Summit Machine small Jimmy Joint rod ends
• Custom pitman arm with rod end support for steering gear sector shaf
• Speedway Engineering 1-3/4” x 48 spline sway bars & arms
• 1997 12 Valve Cummins 6BT- approximately 500+HP/ 1000+ lb/f torque
• MBRP 4” 304 Stainless Steel Exhaust System with single 5″ mitre cut Black Stack
• BD Diesel #5 Fuel plate
• BD Diesel AFC Spring Kit
• BD Diesel Delivery Valve Kit
• BD Diesel 50 hp Fuel injectors
• BD Diesel 4000 RPM Governor Spring Kit
• BD Diesel Super B Twin Turbo Kit
• Fab Shop custom built stainless steel exhaust header
• Boyd Welding custom fuel cell- 17 gallon, mounted behind rear axle
• K&N air filter
• Custom Rear Mounted Griffin Radiator and Electric Fan System
• Custom Griffin Air to Air intercooler
• MBRP 304 Stainless Steel tubing to plumb rear radiator to engine
• MechMan 250 amp High volt Alternator
• NV4500 5 Speed Manual Transmission
• Advance Adapters Atlas 2 Speed Transfer case w/ 3.8 low range ratio
• Currie Enterprises built Dana 60 high pinion front axle- 3.54 ratio, 35 spline alloy shafs
• Eaton Detroit Locker rear differential
• AxleTech International Portal Gearbox drive hubs- 1.5 ratio for 5.31 overall axle ratio
• VanCo Hydra-boost power brake unit
• All stainless steel braided brake hoses & hard line
• J.E Reel 1410 series rear driveshaft
• Custom Four-link Suspension parallel 4 link front w/ track bar, triangulated 4 link rear
• Integrated center skid plate to protect drivetrain & provide a smooth slide-able underside.
• Eibach dual rate 3” ID coil springs
• PSC Motorsports Hydraulic Assist Steering- ported JK gearbox, 1-3/4”x10” assist cylinder, pump,& remote reservoir
• Mastercraf suspension limiting straps
• Fass Fuel Systems Titanium 150 GPH fuel pump
• Engine is mounted on custom motor mount cross member. Firewall cut & rebuilt around Cummins engine-
• Southbend Clutch Dual Disc Clutch kit
• Southbend Clutch 1-3/8” upgrade transmission input shaft
• Southbend Clutch Heavy Duty hydraulic upgrade
• Eaton ELocker front differential
• Currie Ent. built Dana 70HD rear axle- 3.54 ratio, 35 spline alloy shafts
• Currie Ent. Fabricated Differential Covers- front & rear
• Wilwood Brake Calipers (dual front caliper setup)
• J.E Reel 1350 series front CV driveshaft
• High Angle Driveline driveline mounted parking brake (on rear output of transfer case)
• front seats also utilized original seat belts for optional use
• Seats & harnesses installed on custom tubular mounts connected to roll cage
• Auto Meter Ultra-Lite Gauges
• 3-3/8″ Speedo& 2-1/16” Coolant temp, oil press, fuel level, & volts fit into factory dash w/ custom panel
• S Pod Lighting control panels
• Off Camber Fabrications By MBRP Front stubby winch bumper package
• Off Camber Fabrications By MBRP Grill Guard
• Ramsey 9500lb Winch
• JW Speaker LED Head lights
• Off Camber Fabrications By MBRP Windshield light mounts
• 1 Pair Rigid Industries Dually Spot Lights
• Off Camber Fabrications By MBRP Windshield light bar mount
• Off Camber Fabrications By MBRP Rock Rails
• Off Camber Fabrications By MBRP Rear winch bumper package
• River Raider tube fenders
• Pit bull Rocker tires 44×19.50-20LT- including full size bed cage mounted spare
• Full interior roll cage from 1-3/4” x .120” DOM tubing
• Cage passes through body floor & connects to frame in 12 locations with urethane bushings
• Cage is built & fit behind original Jeep dash w/ supports that pass through the firewall & attach to front shock hoops.
• This means the roll cage is integrated onto the Jeep frame from front to rear for excellent structural strength & protection.
• Mastercraf Baja RS custom suspension seats and 5 point Safety Harnesses
• 2-5/8” Tach & 2-1/16” pyrometer & boost mounted to A-pillar of interior roll cage w/ Auto Meter roll cage gauge pods
• American Autowire Highway 22 Wiring Harness
• Ididit tilt steering column
• Ansani Designs fiberglass hood
• Stazworks 20×12 custom Double bead lock wheels w/ rock rings
• Powertank CO2 Air System
• Rear bed cage can be unbolted to allow removal of fiberglass top
• Rugged Radios onboard communication system


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