Coolslice,
That was a good one - about the midgets...
he he he. :-laf
You're funny. Don't let Boardman smack talk ya' just because you don't live in the California desert.
To answer your question about suspension and Death Wobble:
Since some trucks DW right off the showroom floor, the following isn't true in all cases, but in general, we've found that there's often a distinct formula for Death Wobble.
Coil spacers or red "D-25" coils + twin tube shocks + "D" rated BFG ATKO's on 4. 5" backspace wheels = Death Wobble
Coil spacers and thin-wire, low coil-count springs (D-25), for many reasons can't properly control lateral deflection. Conventional twin-tube style shocks cavitate, so they don't provide consistant damping and positive control throughout their stroke. Weird harmonics develop in wimpy "D" rated sidewalls, no matter what load rating the tire has. Wheels that leverage the tire outboard of the bearing centerline exaggerate bump-steer and road wander. The Dodge truck's five-link design literally moves the axle in a circle as the suspension cycles, so if one element is out of whack, an uncontrollable gyration ensues - Death Wobble.
KORE doesn't use coil spacers because they can't flex about properly like a full-length coil.
KORE doesn't use cheap coil springs.
In order to save money on materials, the "D-25" coils the other guys make use very thin bar diameter and few coils. These coils will only cycle 2-3 inches of travel before taking a "set. " When the coil takes a set it loses strength and your truck loses height and wheel travel. In general the number of coils controls stiffness and the bar diameter controls resiliency. Our coils are engineering masterpieces because they are designed to cycle infinitely and remain soft without taking a set and losing resiliency. This is because the set height of our coils corresponds with our solid height - which is a compression level far below what your truck's geometry will permit. The company that makes the red coils banks on that fact that most consumers will never cycle more than a couple of inches of wheel travel, so they build wimpy springs that cost very little to produce. The backbone of our systems is our coil springs. Shipping weight on KORE regular diesel coils is 64 lbs. - about twice the material and much more than twice the cost to produce relative to "D-25" coils. We also produce a Heavy Duty Diesel coil for diesel trucks with heavy winch bumpers. They weigh somewhere around 72 lbs. a pair - so they can be soft, resilient and last forever - even if you're running a winch bumper that weighs 300 lbs.
Most importantly, they cycle the way Dodge designed coils to cycle - they just cycle more travel, are more progressive, and will last longer than stock Dodge coils ever could.
KORE doesn't use cheap twin-tube shocks - so our shocks can't cavitate. There are lots of factors that cause cavitation, but in a twin-tube shock it's when air flows through the piston instead of pure hydraulic fluid. Air doesn't damp; fluid damps - so cavitating shocks can't control springs like they're supposed to. Cavitating shocks permit springs to move about on their own program - the Death Wobble program. Our shocks are all mono-tube shocks. Even our non-remote reservoir Bilstein 5100 Series shocks have an internal piston that keeps nitrogen separated from the hydraulic fluid - to eliminate cavitation and provide consistent, perfect damping bump after bump.
KORE doesn't sell "D" rated tires for HD Dodge trucks. We sell stout, "E" rated tires that are made specifically for Heavy Duty pickup applications. DC equipped your truck from the factory with "E" rated tires for a lot of reasons. We think those are good reasons, so that's what we sell.
KORE doesn't sell wheels that are made to fit lots of different trucks. KORE sells wheels that are made exactly for your truck. The basic wheel aftermarket manufacturers sell for trucks with "lift kits" comes with 4. 5" of backspacing. Third Gen. OE Dodge wheels have almost 6. 5" of backspace! Using the wrong wheel puts improperly-aligned loads on your suspension, wheel bearings and steering components. The best thing about the correct wheel is that it permits a larger tire without rubbing issues in the front fenderwell while turning. An added benefit of the KORE wheel is that it's hubcentric for the Dodge - just like OE.
As for Death wobble with KORE suspension, we've never seen any that can be traced to the installation of our product.
Twice we've had ten-year-old 2nd Gen. trucks get Death Wobble after installing our products and both times it was traced to rotten control arm bushings. Stock control arm bushings are designed to be "captured," meaning the sleeves don't rotate in the flanges, so the rubber twists. While installing KORE coil springs, if you've got an older truck and don't loosen all your control arm mounting bolts, then tighten them after the weight of the truck is back on the wheels, you can rupture an already rotten bushing as the suspension cycles. This step is reflected in the latest version of our instructions.
Due to their design, this won't be a factor with KORE control arms.
Have a great weekend.
Kent