Click for Coverage
Due to the EU’s Global Data Protection Regulation, our website is currently unavailable to visitors from most European countries. We apologize for this inconvenience and encourage you to visit for the latest on new cars, car reviews and news, concept cars and auto show coverage, awards and much more.MOTORTREND.COM
  • JP Magazine
  • Dirt Sports + Off-Road
  • 4-Wheel & Off-Road
  • Four Wheeler

2013 Green Rock Dawg Sidewinder V

Posted in Features on March 10, 2015
Share this

Do you ever encounter a steep climb on the trail and wish you had a longer wheelbase for more stability? Or maybe you have a long wheelbase and get stuck on your transfer case and want a shorter wheelbase.

It isn’t complicated if you’ve operated heavy equipment

Alec Yaeger used to have these thoughts too, and they led him to build the Green Rock Dawg. This buggy has a bank of levers that control everything from wheelbase to ride height at each corner to steering front and rear. And this is actually a simpler system than the spiderlike hydrostatic buggy that Alec previously built and which he drove via a keypad.

If that seems unbelievable, consider that this vehicle is registered in Alec’s home state of Nebraska and he actually drives it down the road! “I get pulled over sometimes,” he says in his typical calm demeanor, “but usually they just want to take a closer look at it.”

We can’t blame law enforcement for that. We wanted to take a closer look at this out-of-the-box thinking as well. How does it work? Well, as they say, a picture is worth a thousand words. We watched Alex tackle some of the hardest obstacles we have ever seen, and he wasn’t even breaking a sweat.

Suspension consists of triangulated four-link geometry front and rear with 2x0.188-wall 4130 chromoly lowers and 11⁄2x0.090-wall 4130 uppers with MetalCloak bushings. King 14-inch, 2.0-inch-diameter coilovers with remote reservoirs are used at each corner with 200/250 lb-in springs in front and 80/130 lb-in springs in the rear. The triangulated four-link geometry (as opposed to a suspension with a track bar) requires the use of full hydraulic steering at each end. More surplus parts turn the 42-inch Krawlers, with 21⁄2-inch-diameter commercial grade surplus tractor rams and an Eaton Vickers vane pump on the motor.

Tech Specs
2013 Green Rock Dawg Sidewinder V

Engine: 1.9L Volkswagen turbodiesel
Transmission: 700R4 4-speed automatic
Transfer case: Advance Adapters Atlas II
Axle: Spidertrax Spider9 with 300M axleshafts, CTM U-joints, and Mega Hi9 third members, with 5.40 gears and Grizzly Locker (front and rear)

Springs & Such: Triangulated 4-link with King coilovers (front and rear)
Tires & Wheels: 42x14.5R20 BFGoodrich Krawler KXs on 20x9.5 TrailReady HD beadlock rims
Steering: Full hydraulic with double-ended ram (front and rear)
Other Stuff: Adjustable wheelbase, custom 3-piece rear driveline, hydraulic rams for forced articulation, Warn 9.0RC winch, Outlaw LED lights

PhotosView Slideshow
Alec’s tow rig is an International semi-truck that he can just load the buggy on the back of. No need to go only 55 mph in California because he’s hauling, not towing! The setup in modular. When he is traveling out of California the buggy lives in a trailer that gets hooked to the big rig tow rig.
PhotosView Slideshow

Connect With Us

Newsletter Sign Up

Subscribe to the Magazine

Browse Articles By Vehicle

See Results