3rd Gen 4Runner - M4 Sherman Tank - Custom Rear Bumper Saga.
Main bar built determining mounting position.
Main bar bolted to the 4Runner.
Frame mounting brackets.
Main bar bolted to the 4Runner.
Center floor section added.
Bottom view of center section.
Sides welded up and attached to main beam.
Sides welded up and attached to main beam.
Sides welded up and attached to main beam.
Drawing of tire carrier.
Tire carrier completed.
Tire carrier without the tire.
Tire carrier at the powder coater.
Rear view of completed project.
Toyota FJ-40 license plate bracket & lights. |
Main bar bolted to the 4Runner.
Frame mounting brackets.
Side view showing departure angle.
Rounded ends after welding, before grinding
Aluminum tread plate used for the center section.
Cardboard mock up of sides.
Sides welded up and attached to main beam.
Main beam and sides grinded smooth to flow together.
Main bumper section out on the trail.
Tire carrier completed.
Main bumper and tire carrier out on the trail.
Martinez Canyon, clearance test.
Main bumper section at the powder coater.
Side view of completed project.
Side view of completed project. |
I worked from September 23, 2002 until December 08, 2002 building the bumper. I would like to thank the following people for helping me complete this project.
Larry "Zags" Zager:
welding
Mark Mason - Kongs 4X4: welding
Mark Owsiany - Maniac Metal Works: tire carrier & welding
Dan Eddleman: Advice & info on metal working
Bill Durham - Flash Forward Design: welding
Tim Maze & Shawn Carlin - Arizona Finishing: powder coating
Eric Van Brunt - Discount Tire Direct: tire and rim
Karlton Durkee: Tacoma mud flaps
Bob Teachout - Capital Metals: steel
4X4Wire message board: advice
Stephens ACE Hardware: fasteners
Classic Cruisers: FJ-40 bracket
Carr-Lane: latch
Updated October 2003.
Believe it or not but the Rockstomper
After 1 year the bearing races were cracked.
After living with the tire on the back |
After 1 year the metal in the trailer
Broken spindle, very disappointing.
Tire carrier hinge and attachments |
Updated March 2004.

This bumper has now found a new home in Orange County, California. I decided to begin building these bumpers on a production basis and opted to install a bumper adjusted for the 1" Body lift I have installed since building the original bumper. The original bumper pictured here in these photos went to another 2.7 liter powered 3rd Gen 4Runner.
Weight of individual pieces:
Main bumper section: 125 pounds
Tire carrier assembly: 62 pounds
Goodyear MT/R & Aluminum Rim: 75 pounds
Stock 1999 Toyota 4Runner rear bumper: 45 pounds
Stock Toyota Class III trailer hitch: 45 pounds
Stock Toyota spare tire and rim: 65 pounds
107 Pounds over stock with hitch.