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Re: Una FOTO por día, SOLO pickups o camiones
2005 Ford F350 6x6 Powesrtroke Diesel - The Formula
An Unstoppable Six-Wheel-Drive Super Duty
Steve Temple –
Jul 1, 2006
Photographers: Steve Temple
View Photo Gallery | 13 Photos
Photo 2/13 | 2005 Ford F350 Powerstroke Diesel 6x6 front Passenger Side View
For some guys, too much is just right. Most of us do just fine with a pair of differentials and four wheels on our 4x4 pickups. After all, why spend any extra money on tires if you don't have to? But, then there are those types who can't leave well enough alone. Take Chuck Chaplinski. Not only has Chuck owned a whole slew of diesel Fords (an '83, '90, '91, '96, '99, '03, and an '05-all of them black), but he's also outfitted every single one of them with an extra set of rear wheels. Now, these aren't simply freewheeling supports for the cargo bed, like on a semi trailer, they're driving wheels. He's reused the exact same system that he custom-fabricated on his first Ford and simply transferred it over and over again to each new truck he acquires.
What motivates a guy to go to so much trouble? Because he can. You see, Chuck is in the concrete business and builds gravel-handling equipment for a living, so modifying a big diesel pickup is mere child's play by comparison. We can just imagine him standing back and looking at one of his heavy-duty conveyor-belt tracks and thinking, Hey, a couple of those wheels would sure look good on my truck.
Then, there's simply the desire to own something different. Explaining how he got involved in this odd hobby of converting Ford 4x4s into 6x6s, he says that he "wasn't able to buy something unique, a vehicle that [he] wouldn't see coming down the opposite side of the road... and I know how to make things work."
So, Chuck decided to get busy building a truck that he'd never encounter on the road or anywhere else for that matter. The more you get into the details of this six-wheeled monster, the scarier it gets.
Photo 6/13 | 2005 Ford F350 Powerstroke Diesel 6x6 front Driver Side View
Chuck admits that the first tandem drive he built was a bear to get working right, partly because of the 32,000-pound load he tows-a Teton fifth-wheel trailer with triple slide-outs, one of which was modified with an extra door so he can keep his Harley in the living room (if you're getting the feeling that he has too much time on his hands, so did we).
"The power divider hasn't always worked so smoothly. When I started developing the box and drive system back in 1983, it took a bit of trial-and-error. I had to find the proper temper on the gears and output shafts, and the original roller bearings weren't strong enough," he says.
Chuck chose Timken tapered bearings that can be tightened up to take out any slop in the driveline, along with shims and spacers that allow some adjustability and fine-tuning.
He also discovered another component that wasn't up to the demands of this extreme application: "The Spicer yokes started to eat into the shafts after 10,000 to 15,000 miles, so I went to a tempered material."
Chuck's ingenuity came in handy when he found that there was a lubricating problem in the idler gear between the top and bottom of the power divider. He drilled three holes into the center of each gear, in between the teeth. This creates a vacuum when they spin, so they act like an oil pump.
Photo 10/13 | 2005 Ford F350 Powerstroke Diesel 6x6 parked
For additional heat dissipation, Chuck hooked up a belt-driven pump to the driveshaft between the power divider and front differential. This allows him to circulate fluid from the front differential to a separate oil cooler, dropping its operating temp more than 130 degrees Fahrenheit.
The biggest problem Chuck encountered was that when Ford went from 16- to 17-inch wheels (in the'04 to '05 model-years), he found that Ford changed to a larger pilot hole on the rims. Thus, he had to make aluminum spacers to fit the wheels to the hubs and drill a new set of bolt holes, as well. Normally, he doesn't put on hubcaps, but he used the factory bolt holes to secure them and cover up the extra bolt pattern.
That wasn't good enough for Chuck, though-are you sensing a theme here? Forget about spinners-anybody can buy those off the shelf. Instead, he wanted his Blue Oval hubcaps to stay horizontal while he's rolling down the road, so after cutting out a set of hubcaps from a Ford Expedition, he added 3-ounce weights and bearings, mounted with a stainless steel shaft and the arm from the original hubcap.
So, where does he go from here? "I've always wanted to do a tilting front end like on those big rigs," he says with a smile.
And you know what? He probably has a formula for that, too.
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