JL/JT Rubicon Full Axle Build Package w/ Knuckles and Linkage
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Revolution JL/JT (D44/D44R) 5.13 Ratio Gear Package (220MM-210Mm) Rubicon
Trail Jeeps specializes in driveline and differential upgrades, and we strongly recommend regearing your JL Wrangler for anything taller than a 37-inch tire. The 8 speed automatic and 6 speed manual do a great job of compensating for a larger tire, but you'll still want to regear for a 37-inch tire regardless if you're Jeep is powered by the 3.6 Pentastar, 2.0 Turbo, 3.0 Ecodiesel (Rest In Peace!) or 392 in order to get it right. You paid a lot for your fancy new Jeep, why skip gearing and ruin the highway performance? When you regear, you are increasing the engine and transmission's leverage on the tires, getting precious torque back that is lost with the addition of larger tires, keeping your transmission in its proper gears at highway speeds, and drastically decreasing wear on engine and driveline components. As an added bonus, a JL on 37s that has been geared properly experiences minimum fuel economy loss, which translates into a real increase in range and reduces money spent at the pump.
Trail Jeeps likes to regear to 5.13 for a 37 or 38 inch tire for JLs with the 3.6, especially when pulling a trailer or regularly driving into the mountains. For manual transmissions, 3.0 Ecodiesels, 2.0 Turbos, 392s or Jeeps that see a lot of highway driving on flatter roads, a 4.88 gear is also a consideration and can provide additional fuel economy if driven for long distances. You may want to consider a 4.56 for you guys that are still rolling with the Ecodiesel, although the difference between 4.56 and 4.88 is negligible.
For our gears, Trail Jeeps sticks with Revolution Gear and Axle exclusively for reliable, quiet operation, predictable installation characteristics, and for their solid warranty policy. It is also worth nothing that Revolution Gear and Axle is an American, veteran owned company, who we have had an awesome relationship with for years. Their gears are cut in South Korea, which is the place to go for OE quality gears. Watch out for gears made in China.
Here's more info from Revolution Gear and Axle on their gears:
Gear Packages from Revolution Gear and Axle include Front and Rear Ring and Pinion Gear Sets and Master Install Bearing Kits.
Re-gear your 2007-18 Jeep Wrangler JK with one of our most popular gear packages. Complete your 4x4 Jeep build with parts from the brand that off-roaders have trusted for decades. Our mating Master Install Kits offer a comprehensive bill of material with all the components needed to overhaul your differential ring and pinion gear set.
Enhanced Capability and Performance: The optimized gear ratio improves torque delivery to the wheels, allowing for better traction and control. Towing performance is improved when you install the correct gear ratio for your vehicle setup by providing increased torque at lower speeds, making it easier to pull heavy loads without straining the engine. This means smoother, more efficient towing, whether you're hauling a trailer or carrying gear for your next adventure.
Increased Fuel Efficiency at Highway Speeds: Contrary to what one might expect, the right gear ratio can contribute to better fuel efficiency. By optimizing the engine's RPM at highway speeds, the ring and pinion gear set helps maintain a more efficient fuel consumption rate, saving you money and extending your journeys.
Superior Strength and Durability: Revolution Gear and Axle is renowned for their commitment to quality. All ring and pinion gear sets are made from high-grade steel using precision gear cutting and heat treatment processes that meet or exceed Original Equipment standards. This results in a product that performs exceptionally and withstands the rigors of both daily driving and extreme off-road conditions.
Easy Installation and Quiet Operation: With over 40 years of manufacturing experience, Revolution Gear and Axle ring and pinions are preferred by installers for smooth and consistent setup. Our gear sets offer quiet operation, ensuring a comfortable ride without the annoying gear whine that is often associated with aftermarket gear sets.
A 2-year warranty backs all Revolution Gear, Axle Ring, and Pinion gear sets against manufacturing defects. With products that have been Street, Off-Road, and race-proof, you can count on Revolution Gear and Axle products to be the most trusted in the aftermarket.
Rock Jock JL/JT Rubicon High Steer Knuckle Kit (For Stabilizer Shock)
The RockJock Correctlyc steering package is a game changer for JLs and JTs. One of the downfalls of the JL platform is that you have to notch the frame to give a conventional high steer room to move, and to do so means notching the crumple zone of the of the JL's frame, not great.
But, this is no longer an issue. The JL Correctlyc kit comes with ductile steel knuckles, much stronger than the factory aluminum and an upgrade from factory steel knuckles, that move all of the geometry tie rod up and out of the way, and move the draglink into a high steer position, with a track bar relocation bracket to match! The magic bullet that they used to solve the notching issue is a curved draglink that goes around the frame when the right side of the vehicle is compressed.
This set up give you crisp steering, improves ride by taking the angle out of the front track bar, and gives your steering box better leverage to push your big tires around by flattening the drag link angle.
Here is some info from RockJock:
More than just a pair of knuckles, THE ONLY High Steer Kits on the market that are COMPLETE!
These are bolt-on kits designed specifically for the JL/JT/JK vehicle platforms, engineered to optimize performance and available with both steering damper and ram assist options
THIS IS NOT a flip kit! Kits feature new knuckle castings with elevated steering arms - making them the highest High Steer solution available on the market!
Cast, 65-45-12 ductile iron knuckles replace the unreliable stock aluminum knuckles
Raises drag link and trac bar axle mounting points 2.50 in., correcting front end geometry to enhance stability, reduce body roll, and prevent bump steer
Preserves correct Ackermann geometry for safe and reliable on-road handling across all speeds and conditions, including highway driving, towing, and heavy loads
Lifts the tie rod by 2.75 in., elevating it above the rocks and enhancing ground clearance for all steering components
While most flip kits require a minimum of 3.0 in. of bump stop, the RockJock High Steer incorporates a dip in both the drag link and tie rod to optimize up travel potential, requiring only 2.2 in. (gas), 1.1 in. (diesel) and .188 in. (392) of bump stop!
CAD-based packaging using our forged, organically shaped trac bar and drag link prevents components from making premature contact with the frame, enabling greater upward travel than stock, even with lifts as low as 3 in.
Knuckles (included)
Knuckles feature two adjustable steering stop locations (fore and aft of axle centerline) for full lock-to-lock adjustability which helps ease the strain on steering components at full lock
Allows for ALL factory outer components to be retained, including ball joints, unit bearings, outer axles, brakes and dust shields
OEM JL/JT aluminum knuckles are replaced with RockJock’s cast 65-45-12 ductile iron knuckles. The stock aluminum knuckles often fail at the taper and ball joint press holes over time. RockJock knuckles exceed OEM quality and strength
NOT a flip kit! Knuckles feature longer, raised steering arms that push the tie rod outward, away from the axle slightly, allowing for tighter steering angle over that of stock and 1 ton axles
RH Knuckle features a rearward tipping of the upper, tapered drag link mounting hole to help the rod end head clear 17 in. wheels (mandatory), with up to stock offset/backspacing of ET=44.45
Steering (included)
Drag Link is raised 2.50 in.
Tie Rod is raised 2.75 in.
Raising of steering rods puts them back to stock geometry after vehicle is lifted restoring factory steering geometry for improved drivability and overall road comfort on a lifted rig
Raising of steering rods puts them out of harm’s way
Dip in tie rod and dip in drag link allow for maximum up travel, requiring only 2.2 in. (gas), 1.1 in. (diesel) and .188 in. (392) of bump stop, as opposed to a 3.0 in. bump stop on most competitor kits
Vehicles already equipped with RockJock steering (with forged drag link) can reuse their steering
Bracket Kit (included)
Bracket kit relocates the trac bar mounting point up 2.50 in. for corrected front-end geometry, improving stability, reducing body roll, and preventing bump steer
Hydraulic assist ram bracket kit requires trimming of the factory trac bar bracket on the axle housing and requires some minor welding
Bracket for hydraulic ram assist features a skid plate, incorporated into the bracket, to protect the ram from rock strikes
Dynatrac HD Balljoints/Prosteer for 2020-Current Jeep Wrangler JL and 2019-Current Jeep Gladiator JT
Balljoints have been a major shortcoming of the JK and JL/JT Wrangler. We rarely see factory balljoints last more than 30,000 miles, with larger-than-stock tires and even moderate off-road use, which is why we replace factory balljoints with Dynatrac Heavy-Duty Balljoints!
These will be the last ball joints your Jeep will ever need. We adopted these ball joints as our go-to one-size fixes as soon as we tried them on our own Jeeps just after they were released, transforming one of the Wrangler's weak links into one of its best attributes. Dynatrac ball joints are the strongest, most durable, and highest quality available anywhere, featuring heat-treated high-strength billet bodies with chromoly stems.
Dynatrac Rebuildable HD Balljoints for 2018-Present Jeep Wrangler JL and 2019-Present Jeep Gladiator JT solve wear and excessive movement issues that can lead to increased tire wear, loose steering feel, and decreased stability. With larger tires, factory ball joints can develop excessive play and movement in as little as 20,000 miles.
The heat-treated, precision-ground stainless steel ball meets military specifications. Unique seals prevent contamination, and the ball joints have greasable fittings and Teflon-coated wear points to provide a long, durable life. OE style balljoints require them to be pressed in and out of the axle's knuckle C's for replacement, making them a difficult trail fix. Dynatrac balljoints are rebuildable on the vehicle with standard hand tools.
These are some of our very favorite mods, and throughout the years of using them, we've only seen a handful of failures, all of which have been able to be rebuilt on the vehicle, never coming loose from the C's or requiring a full replacement.
Artec JL-JT APEX Front Axle Armor Kit
The new JL/JT M210 "Dana 44" is a major improvement than the JK Dana 44 front axle. It has beefier tubes and knuckle C's, which are much less prone to breaking, and the new ring and pinion design gives the gears deeper engagement with more surface area contact for a much stronger differential capable of supporting a large tire off-road. The non-392s also have a front axle disconnect, or "FAD," which is nothing to be feared. It has proven to be reliable and durable, unlike the old FADs that were available in XJs and YJs that gave it a bad name. It helps with fuel economy and reduces wear on the front axle components by keeping the differential and driveshafts from spinning when in two-wheel drive.
Like all things, it does have its weaknesses though, and the FAD housing is the biggest one. Instead of bending axle housings, like in JKs, we see the FAD crack and fail, and we've even seen them blow in half Any damage to the FAD section of the axle is considered catastrophic and not repairable! The best insurance for a JL M210 is a good truss system, and the Artec front axle armor kit is our favorite. It not only proves a truss that bridges the the FAD housing, alleviating the stress on the FAD housing, but will also keep the housing from bending or breaking. It also includes C gussets, to ensure your knuckle sees stay straight, and weld on control arm skid plates to keep the control arm mounts from being damaged off road. We have seen first hand the beating that a well trussed M210 can take vs the stock housing, and we recommend it for any Jeeper that plans on taking their rig off road.
RCV Ultimate Dana 44 Axle CV Set for Jeep Wrangler JL and JT Rubicon w/FAD
Like so many aspects of the Rubicon M210, the axle shafts were improved. Whether they're the conventional U-Joint style axles or the newer CV style axles found in "Auto Hi" all-wheel drive capable Jeeps, they've proven to hold up pretty well with up to a 37-inch tire when driven off the road gently. But, they still break.
RCV Performance Ultimate CV axles are an awesome upgrade to any vehicle that goes off road. The RCV Performance Ultimate CV Axles for Jeep JT Rubicon Dana 44 provide unmatched strength and smoothness you can feel. The RCVs simply replace your OEM Jeep JL axle shafts with a high-strength constant velocity design. Their eliminate oscillation and "crow hop" caused by the uneven power delivery of a u-joint axle. The RCV CVs provide 6 points of fully-engaged contact throughout any angle up to 45 degrees, providing 100% strength even when the steering is turned to lock.
Along with the CV shaft and the axle itself, the FAD section of the axle is also beefed up, with a new hardened engagement collar that binds the hardened chromoly axle shafts together. We have seen zero FAD failures with RCVs, and breaking the CV itself is a challenge. These axles do require semi-regular greasing, and we recommend greasing after off road excursions, wet weather and water crossings. In the event that breakage does occur, RCV does include a lifetime no questions asked warranty with their axles. If you break it doing something fun, they replace it! RCVs are fully rebuildable and serviceable, and with proper maintenance they can be considered a lifetime upgrade.
RCV Ultimate 300M Dana 44 Rear Axle Set for Jeep JL Rubicon 2018+
Just like the font axle, the rear axle is also treated to a set of RCV Performance axle shafts, this time with their Ultimate 300M axle set.
RCV Performance Ultimate Rear Axles simply replace your stock 32 spline Jeep JL's weak Dana 44 (OE refers to it as the M220) axle shafts with a high-strength 300M design that is 100% MADE IN THE USA. Tests prove Ultimate CV Axles to be twice as strong as OEM Jeep JL shafts. Even if you have big tires and big power there are no worries. RCV backs it all with a "No Questions Asked" limited lifetime warranty against breaking & bending!
While the much improved M220 can handle a 37-inch tire, for '18-'23 Rubicons, bent flanges are common, vehicles with spun rear bearings on vehicles are also commonplace, and like with the JK rear axles, the OE axle shafts can only handle so much twist before the deform permanently and bend. For '24 and up JLs the full float rear axle is a big improvement, but the axle shafts are still vulnerable to twisting and the OE spines are more easily twisted at the hubs.
Axle set includes right and left rear axle shafts. Dual bolt pattern threaded flanges support the stock 5x5" bolt patterns. Axles come fully dressed with all the necessary bearings, seals, retainers and studs to complete the package. Black oxide coating is standard.
Price: $14,240