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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.

Chrysler recalling 382k Ram HD diesel pickups, 184k SUVs

Between GM's ignition switches and Takata's airbags, it's been a big year for recalls, but they keep rolling in. The latest comes from Chrysler, which has announced a pair of recalls for certain heavy-duty pickups and SUVs.
The first issue revolves around the 6.7-liter Cummins diesel engine available in the 2010-2014 Ram HD trucks, including 2500 and 3500 series pickups as well as 4500 and 5500 series chassis cabs. In the affected units, "a terminal connector near the fuel heater may be subject to friction-induced corrosion," according to the first of the two announcements from Chrysler below.
The problem could result in overheating and fuel leakage. Chrysler launched its investigation following cases of overheating, none of which actually started a fire, much less an injury or accident. As a precautionary measure, however, Chrysler is instructing service technicians to replace the terminals on an estimated 381,876 Ram units around the world - the vast majority of those (314,704) registered in the US, another 59,432 in Canada, 1,803 in Mexico and 5,937 abroad.

Rivian R1T faces first competitive test in Rebelle Rally

Not long ago, the Rivian R1T electric pickup engaged in a very public bit of development testing as a support vehicle for "Long Way Up" — the trip Ewan McGregor and Charlie Boorman took on Harley Davidson LiveWire electric motorcycles from Ushuaia, Argentina, to Los Angeles. Next month, the R1T enters the realm of competition testing by competing in the Rebelle Rally, the all-female navigation rally held over 10 days and 1,243 miles in the sandy, rocky hinterlands of California and Nevada. The team behind the wheel will be pilot Emme Hall and navigator Rebecca Donaghe, who won last year's Rebelle Rally driving the then-new Rolls-Royce Cullinan. This is the first year in the Rebelle's five-year history that there will be a pure electric vehicle. A Mitsubishi Outlander PHEV will be the only other entrant flying the electrified flag. To welcome the battery-electric pickup and any other electrified runner that wants to join in the future, rally organizers have arranged a battery-powered mobile charging system to be deployed along the course. It's not clear which battery and motors the Rivian will house, but the top spec would provide a 180-kWh pack, up to 750 horsepower, and a range of more than 400 miles in normal conditions. The race will help Rivian hone the pickup's off-road credentials, the brand's creative director saying, "Adventures like the Rebelle Rally are what Rivian vehicles are made for." The Rebelle isn't a timed rally, so the point isn't to beat up the R1T with marathon stints on the throttle. As a navigation rally, competitors aim acquire points by hitting certain checkpoints, making strategy key. The ability to clamber over and through whatever's in the way won't hurt, either, a technique aided by the R1T's height-adjustable suspension that provides 14 inches of ground clearance on its tiptoes. The ability to do tank turns might also come in handy. The Rivian will prove itself by placing, or teach important lessons by falling out. All of this is a necessary step for a manufacturer selling "electric adventure vehicles." There are only two classes in the Rebelle Rally, Crossover and 4x4. Crossovers can be two-wheel drive or all-wheel drive, and can have unibody construction but no low-speed transfer case. The 4x4 class is traditional off-roaders with a low-speed transfer case, ranging from the Jeep Wrangler to the Range Rover.