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2020 Ram 1500 4x4 Suspension Deep Dive

What is taking everyone so long? That’s what I continually ask myself each time yet another all-new full-size pickup comes out with leaf spring rear suspension. Meanwhile, this 2020 Ram 1500 pickup represents a dozen years since coil spring rear suspension debuted when its prior generation was still being called a Dodge Ram 1500. Ford, Chevrolet, Toyota and Nissan introduced full redesigns of their pickups well after Ram proved that coil springs were the way to go, and yet leaf springs persist with the competition. IÂ’m not just popping off, here. In the 1990s I used to specialize in pickup truck suspension tuning for the Toyota Technical Center. Leaf springs are crude and loaded with compromises, but thatÂ’s all that truck design engineers ever gave us to work with. I was instantly all-in on RamÂ’s move to rear coils after the first few miles of driving a 2009 Ram 1500 pickup. Empty-bed ride comfort and handling were on another level, but it could still tow and haul. In fact, towing stability proved to be frankly incredible on the normally-treacherous downhill leg of my winding tow test grade. I fully expected everyone would copy it immediately. But they didnÂ’t. Others may have doubted the payload aspects. Ram never did. It soon doubled down and put coils under the back of its 2014 2500-series trucks. IÂ’ve developed other theories that seek to explain why no one followed their lead, but theyÂ’re not worth dredging up because I think the dominoes will soon begin to fall. Spy photos suggest that the next Toyota Tundra will switch to coils, and there are rumors that the Ford Raptor is going that way. ThatÂ’s not much of a stretch because the Ranger Raptor (only available outside the U.S.) already has coil spring rear suspension. WhatÂ’s the big deal? LetÂ’s take a look at the underside of a 2020 Ram 1500 Laramie 4x4, the second iteration of the Ram 1500 to employ coil spring rear suspension.   As it has for some time, the front end of the Ram 1500 rides on double wishbone suspension. The truck employs a high-mount upper wishbone (yellow arrow) that positions the upper ball joint up behind the tire sidewall instead of inside the wheelÂ’s barrel. This layout offers improved steering geometry and reduced stress in the upper ball joint, the upper control arm and its mounting points.   Coil-over spring/shock assemblies (green) come standard on all 2019+ (fifth-generation) Ram 1500 pickups whether they have four-wheel drive or not.

2021 Ram 1500 TRX Suspension Deep Dive | Underbelly of the beast

I think we can all agree that we have been waiting for a gonzo full-size truck like the 2021 Ram 1500 TRX for a long time. After all, it has been over a decade since the Ford F-150 Raptor came out, and it was such an immediate hit that I expected its direct competitors to respond much sooner than this. We all knew something was finally brewing in 2016, when the TRX concept was unveiled at the Texas State Fair. I was there, and was among the many who gave the assembled Ram higher-ups an enthusiastic thumbs-up. That’s what they were hoping to see before they greenlit the project. The pace of development being what it is, and with the redesigned, current-generation Ram 1500 a prerequisite that understandably had to come first, itÂ’s no surprise that weÂ’re only seeing it now as a 2021 model. You may be biting your tongue that I overlooked the Tundra TRD Pro or the Chevrolet Silverado Trail Boss, but neither of those comes close to following the formula established by the Raptor: big engine, a much wider stance than the base truck, greatly enhanced suspension travel, huge tires and swollen fenders to cover it all. Only the Raptor and the TRX fit that mold. For now.   Before I got started, I first pointed the TRX up my RTI ramp and measured its Flex Index score. Please excuse the shaded nose; the truck ran farther up than IÂ’d guessed and literally drove out of the picture. But something in my subconscious warned me to keep the garage door open, which was fortuitous because the nose of the Ram ended up inside. The TRX hiked its front wheel 29 and 7/8 inches off the ground before the left rear tire reached the point of lift-off, and that equates to a climb of 87.4 inches up the deck of my ramp. Divide that by the TRXÂ’s wheelbase of 145.1 inches, multiply by 1,000, and you arrive at a Flex Index score of 602 points. It could have been a few points higher, I think, if I could have straightened out the steering a bit better. But the high-grip cheese grater surface of my ramp was firmly dug in and having none of it. This is an extremely good score for a full-size crew cab pickup. LetÂ’s take a closer look at what made that possible.   The track width of the TRXÂ’s double wishbone front-suspension is a full 6 inches broader than a regular Ram 1500, and you are looking at the parts that are responsible. The lower wishbone (yellow arrow), the upper control arm (green) and the steering knuckle (red) conspire to add 3 inches per side to the TRXÂ’s stance.

Ram wants its midsize truck situation 'fixed soon'

The rumors of a midsize Ram pickup are like a metronome — sometimes in motion, sometimes dead. This week the rumor is alive, so reports Automotive News. Fiat Chrysler CEO Mike Manley admitted during an earnings call that the lack of a mid-sizer is "a clear hole in our portfolio," and that the Ram product development team is "focused on it." Puzzling that out means finding "a cost-effective platform in a region where we can build it with low cost and it still being applicable in the market." But he wants a solution found soon. During the product roadmap presentation FCA made in June last year, late CEO Sergio Marchionne said the middling pickup would be built in Mexico. That tidbit came after years of Marchionne saying the brand would get in the segment, only to have the idea shot down by Ram bosses. At the 2012 Detroit Auto Show, a year after the midsize Dodge Dakota went off the market, Marchionne said the brand would reinstate a new-generation Dakota, with a better-than-50% chance it would be unibody. In 2013, then-Ram president Reid Bigland said the chances were tiny because the numbers didn't add up. The two men got on the same page, in favor of, in 2014. In March 2016, Marchionne said, "I like that space a lot," and "It's a good space to be in." Exactly one month later, then-Ram CEO Bog Hegbloom said the idea was dead because he couldn't make a business case for it. Come early 2018, even Marchionne had joined the naysayers. He told Automobile, "We did not think it was necessary to re-enter that market after our last experience." The snag was, and remains, that a smaller truck has "a cost structure very similar to our Ram 1500. We have not found an economic way to get this done." Four months later, there's a midsize pickup on the product roadmap. Then, at this year's New York Auto Show, Ram Trucks boss Jim Morrison told us Ram had no plans yet for a smaller pickup, although the division continues to look at its options. Last September an Automotive News report forecast the truck to be built in Toledo alongside the Jeep Wrangler and Gladiator pickup. When Car and Driver asked for clarification about Toledo or Mexico, FCA pointed to Marchionne's comments referring to Mexico. It appears that's the angle Manley and his team are still trying to make work. The Saltillo, Mexico, assembly plant now builds Ram's heavy-duty trucks, but observers expect HD production to move to the U.S. to make room for the smaller pickup.