JL/JT Rubicon Full Axle Build Package

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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.

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: $11, 470