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Enlightened TTB: Camburg Long-Travel for "The Juice" Bronco

Our Project Bronco Earns Its Long-Travel Legs

By Dexter Roberts Jr., Photography by Dexter Roberts Jr.
Enlightened Ttb 1993 Ford Bronco Project Truck 1993 Ford Bronco With Camburg Long Travel Kit
A full 8 inches wider than a stock Bronco front end, the Camburg-modified TTB beams fit nicely under our 6-inch-wider-per-side McNeil Racing fiberglass fenders. The truck was irrevocably transformed into an attention-getter; we actually had folks flag us down while driving more than once to ask us about the mods. At this point, we are ready to officially call the truck a full-fledged prerunner. The big question was, “How would it feel in the dirt?”
A full 8 inches wider than a stock Bronco front end, the Camburg-modified TTB beams fit ni

We’re guessing you’re like us: You went from a stock truck to a lifted truck…and then you wanted more. You liked the tire clearance and approach angles afforded by the lift kit, but yearned for more wheel travel, a better ride, and the ability to blast through deep whoop sections or slide around corners on dirt roads.

Yes indeed, you’re just like us—you want a long-travel suspension.

Four long years. It’s been that long since we first picked up a stock ’93 Bronco and daydreamed about someday putting a great long-travel kit suspension underneath it, with fiberglass fenders making room for some decent rubber. That was really all we wanted, perhaps with the addition of a few of mild power-adders and other basic mods. What we’ve ended up with is a completely rebuilt truck, created by necessity as its 19-year-old original parts routinely committed suicide during our on- and off-road exploits.

01. The tech team at Camburg pulled our TTB components off the Bronco, then cut into the beams. They were extended by four inches per side and turned a bit to retain correct geometry. Next, the open spots in the beams were boxed in. The 14-inch-stroke Bilstein coilovers (9100 series—more about them later) were mated to Eibach springs and then mounted up on the new shock hoops, which are supported laterally with a removable crossbar support over the engine compartment.
01. The tech team at Camburg pulled our TTB components off the Bronco, then cut into the

Even before we had this Bronco in our project fleet, we had eyed Camburg’s long-travel suspension kits for twin-traction beam-equipped Fords with interest. We knew there was a lot of race experience behind the design of these systems, and also that the components had a reputation for being rugged and well-matched. But that could be said for many suspension offerings on the market today, so we looked deeper and learned a bit about TTB theory.

“The details matter a lot,” explains Jerry Zaiden, Camburg Engineering co-founder. “The angle of the shock towers, the ways in which the beams are cut and welded, knowing exactly where the stress points are, and dozens of other bits of info. Some of them come from trial and error when you’re racing, but others come from understanding exactly how the suspension is supposed to work. Some shops just fabricate up longer components and call that ‘long-travel’ without regard to geometry or safety.”

After a number of long conversations with a few knowledgeable folks, we dropped the Bronco off at Camburg and its crew got started. Both traction beams were cut, turned, and extended by four inches. Coilover mounts were created, and then joined for support and rigidity with a removable engine crossbar. The old lift-kit radius arms were removed, and Camburg’s longer, heim joint-ended replacements were bolted in.

  • 02. Here’s a good look at the front of the passenger-side beam. Look at those welds! Lengthened by four inches per side then turned and boxed up, these beams are plenty strong enough for the front-mounted coilover perches…and certainly rugged enough for some high-speed rides through rugged terrain.
    02. Here’s a good look at the front of the passenger-side beam. Look at those welds! Len
  • 03. Ford seemed to think that Bronco owners (or F-150 owners from that period) didn’t need boxed beams. That may be the case for those vehicles relegated to grocery-getting, but not for those that will most certainly be taken over desert whoops. The only holes in the beams that remain are those that are necessary for the axleshafts.
    03. Ford seemed to think that Bronco owners (or F-150 owners from that period) didn’t ne
  • 04. Service with a smile! The oddball-length axleshafts weren’t readily available at any of the mail-order axle/drivetrain outfits that we contacted, but the Currie Enterprises gang didn’t even crack a sweat creating ours. When we have custom axle needs, we’ve found a call to Currie is the easiest and quickest way to get our fix.
    04. Service with a smile! The oddball-length axleshafts weren’t readily available at any
  • 05. We used two springs of different rates on our coilovers (though there would be still graduated damping with two matching rate coils). We tried a few different combos and ended up with 450-pound springs over 500-pound springs, which is pretty common among prerunner Broncos.
    05. We used two springs of different rates on our coilovers (though there would be still
  • 06.0 We’ve always run Bilsteins on this Bronco, and in this case we used a pair of their 2.65-inch diameter 9100s with the new ACV (anti-cavitation valve). Oil is forced through channels in the ACV before it reaches the inside of the reservoir.
    06.0 We’ve always run Bilsteins on this Bronco, and in this case we used a pair of their
  • 06.5 This allows the shock to remain stiff over high-speed bumps without the use of a stiff main valving stack. Bilstein recommends that ACV-equipped shocks be used only in the front end of vehicles, as they can be a bit too aggressive for the rear.
    06.5 This allows the shock to remain stiff over high-speed bumps without the use of a sti

We chose to use Bilstein coilovers and Eibach springs, as we’ve had good experiences with products from both companies. Our next step was to find some axleshafts that would match the lengthened beams. Calls to a few mail-order axle suppliers left us empty-handed; the custom length shafts (one side is U-jointed in the center) certainly weren’t off-the-shelf parts. Finally, we got in touch with the people at Currie Enterprises, and they set us straight, with a “Yeah, we can build whatever you need.” We had the shafts in hand a few days later.

We hung around Camburg headquarters in Huntington Beach, California, for a couple of days as the crew installed the parts. The place is a beehive of activity, with Trophy trucks being created in one area of the large shop floor, and individual customer vehicles in the process of modification throughout the facility.

We shot the install and then came the moment for which we’d waited so long—a lengthy off-road trip with long-travel suspension underneath our beloved project truck. Was it all that we’d hoped and dreamed for? Did the suspension transform the Bronco into a full-fledged desert runner? We’re guessing you’ve glanced at the photo and already have an idea, but follow along with the captions for a full-fledged report.

  • 07. In addition to the coilovers, Bilstein bumpstops were utilized in conjunction with the Camburg kit. At some point in the near future, we’ll have these under all four corners of the Bronco, but for now, only the front end is so equipped. We stubbornly run 37-inch Grabbers under the Juice, rather than the 35-inch rubber that Camburg recommends with the kit, so the bumpstops were carefully placed in order to limit uptravel and keep the Bronco’s fenders and climate control equipment from being bashed and destroyed by the 37s.
    07. In addition to the coilovers, Bilstein bumpstops were utilized in conjunction with t
  • 08. Camburg’s own radius arms were utilized as part of the long-travel kit, and these are even longer than some of the aftermarket offerings you’ll find from the usual lift companies. As you’d expect, the mounting brackets are burly too. Beard limiting straps keep the front wheel travel constrained to 19 inches. More could be coaxed out of the kit, but at that point we’d fear pulling the long axleshaft out of the differential. More than the wheel travel, it’s the well-conceived components and they way they work together that create the performance capabilities of this kit.
    08. Camburg’s own radius arms were utilized as part of the long-travel kit, and these ar
  • 09. One complaint we’d always had with TTB (twin traction beam) lift kits was that the urethane (or rubber) bushings at the end of the radius arms would wear out quickly, causing a clunk during braking as the end bounced around in the bushing cavity. No such problems here—Camburg utilizes a 3/4-inch pivot bolt through a 1.25-inch rod end rather than using urethane. The Heim joints are inherently stronger and will last longer in this radius arm application
    09. One complaint we’d always had with TTB (twin traction beam) lift kits was that the

Off The Road Again

We departed for a two-day, 200-mile desert trip a few weeks later, excited at the chance to test the suspension. And test it we did—through long washboard roads, deep whoops, bermed turns, patches of powdery silt, and passages of sharp volcanic rocks. The thing was awesome (and the General Grabbers survived the whole trip. Though the Bronco doesn’t have the power of a modern Ford Raptor, it easily kept pace with one throughout the trip. And we’re betting it would have even pulled ahead in gnarlier terrain thanks to the control and damping provided by the Camburg long-travel kit.

We even took the Juice into the rocks. We were curious to see how the long-travel TTB setup would work in the rocks. In this case, the Bronco crawled around pretty well! Wheel droop was much improved, as demonstrated in this photo. Sure, it was difficult to fit the Bronco into some of the Jeep trails, but other than that, the day was a success. This is one reason we’ve made sure to retain four-wheel drive, and we plan to do further testing at this year’s Moab Easter Jeep Safari. This Bronco can rip around in the desert and climb on trails in low-range. That’s some admirable versatility, and we won’t deny it: We’re thrilled with the Camburg kit.

Sources
Currie Enterprises
382 North Smith
Corona
CA  92880
714-528-6957
www.currieenterprises.com
Eibach Springs
264 Mariah Circle
Corona
CA  92879
800-507-2338
www.eibach.com
CAMBURG ENGINEERING
7409 Slater Ave.
Huntington Beach
CA  92647
714-848-8880
www.camburg.com
Bilstein
14102 Stowe Drive
Poway
CA  92064
858-386-5900
http://www.bilsteinus.com
By Dexter Roberts Jr.
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