Jeep Wrangler JK Regear
Big tires on stock gears?
Regear and reinforce.
Big tires on factory gears steal your power and punish your stock axles.
A Revolution gear package puts the power back.
✓Back it up with Discovery Series 4340 chromoly axles.
10 Year Limited Warranty on the shafts.
2 Year Limited
Gear warranty
10 Year Limited
Discovery Series axles
Limited Lifetime
Driveshaft tubing & welds
Free Freight
On orders over $100
30-Day Returns
New, uninstalled parts
Step 1
Pick your ratio
Bigger tires need a numerically higher ratio. Pick your JK’s year range for our recommendations, automatic or manual. Driving a JL? Head to our JL/JT regear page. Driving a TJ? Our Jeep regear guide covers it.
2012-2018 JK · 3.6L
2007-2011 JK · 3.8L
Your engine, transmission, driving style and added weight like rooftop tents or other gear can impact what the right ratio is for your individual rig. Running a 4-door with armor, a rack or a trailer? Go to the top of the range. The 3.8L makes less power than the 3.6L, so it needs more gear on the same tire.
Step 2
Find your gear package
Includes front and rear gear sets, and master install kits with all the components needed to do the job right the first time.
JK Rubicon
Dana 44 Front & Rear Gear Package
FrontDana 44
RearDana 44
Ratios
4.10 · 4.56 · 4.88 · 5.13 · 5.38
JK Non-Rubicon
Dana 30 Front / Dana 44 Rear Gear Package
FrontDana 30
RearDana 44
Ratios
4.10 · 4.56 · 4.88 · 5.13 · 5.38
Factory 3.21 gears? The Dana 30 front also needs a 3.73-and-up carrier.
Rubicon or not? Every JK Rubicon, including the Hard Rock, Recon, Rubicon X and 10th Anniversary, has Dana 44s front and rear. Nearly every other JK, including the Sport, Sahara, Willys Wheeler and Freedom, has a Dana 30 front and a Dana 44 rear.
Factory 3.21 gears? Your Dana 30 front needs a new 3.73-and-up carrier before it takes any of these ratios. Make it an Eaton ELocker and you get a selectable front locker in the same install. It rides on CK3035 carrier bearings. The rear keeps its factory carrier, and so do JKs with factory 3.73s or 4.10s. Not sure what you have? Send us a message with your VIN.
2007 JK? A few early 2007s left the factory with a Dana 35 rear. Send us your VIN before you order.
Need an Individual Gear Set?
Front and rear must match, so order the ratio you run at the other end.
Ring and pinion sets
Each gear set needs its own install kit. Add the matching master install kit for that axle. Gear packages already include them.
Master install kits
Step 3
Dial it in
New gears and tires mean your Jeep is running on the wrong numbers. Set your tire size and gear ratio so your speedometer reads true.
Programmer · Z Automotive
Tazer JK Blaster
✓Sets your tire size and axle ratio from an app on your phone
✓Plugs into the factory OBD2 port
✓Fits 2007-2018 Wrangler JK
Step 4
Build it once
Doing gears means the axles are already apart. Add shafts, lockers and covers now and pay for that labor once.
Axle shafts
Discovery Series 4340 Chromoly Axle Kits
✓Rear kits ship pressed with bearings, seals and retainers, plus wheel studs in the box
✓10 Year Limited Warranty on the shafts against breakage, bent axles and twisted splines
Find Your Axle Kit
Keeping the factory differentials? Run the kit that matches: 32 spline for the Rubicon rear, 30 spline for the non-Rubicon rear. The Rubicon front kit works with the factory locker only. Our 35 spline rear kit is for non-Rubicon rears running a 35 spline locker. Rear kits are drilled for both 5x5 and 5x5.5 bolt patterns.
Rear axle kits
Front axle kits
Running a 35 spline kit?
Lockers
Eaton ELocker
✓Runs open on the street and locks both wheels at the push of a dash switch
✓Electric, with the switch and wiring harness included
Find Your ELocker
Rubicons come locked front and rear. Factory rear locker? Just add the front. The Dana 30 ELocker is the 3.73-and-up version, so it fits every ratio we sell. Match the rear to your axle spline count.
Driveshafts
CV Driveshafts
✓1350 series for up to 42-inch tires, 1310 series for up to 37-inch
✓Limited Lifetime Warranty on twisted tubing or broken welds
Find Your Driveshaft
Flange style bolts to your factory front pinion flange. Built for lifts up to 4.5 inches; taller lifts or altered differentials may need measuring. 2-door rear driveshafts need adjustable rear control arms to set the pinion angle.
Front · 2 or 4 door
Diff covers
Heavy Duty Diff Covers
✓1/4-inch formed steel body with a 3/8-inch steel ring, made in the USA
✓1 Year Limited Warranty
Find Your Diff Cover
Bare steel: run it as is or paint it to match.
Pick your axle
Keeping your factory axle shafts? Add a rear bearing & seal kit.
Why Revolution
Same part number. Same gear. Every time.
The No Re-Box Promise
Every ring and pinion set we sell is ours. We do not take someone else’s gears and put them in our boxes. Order the same part number twice, and you get the same gear twice.
Matched Packages
We built gear packages for popular setups so you skip the guesswork of matching gear sets to the right bearing kits.
Veteran Owned
We proudly remain a second-generation family and veteran owned company.
Specs In The Open
We publish our differential setup specs so you and your installer start from the right numbers. Setup specs
Quick answers
Regear questions
The things JK owners ask us most.
01Do I really need to regear for bigger tires?
If you want your Jeep to drive right, yes. Bigger tires on factory gears cost you power, and the automatic ends up hunting between gears. Regearing to a numerically higher ratio restores performance and improves torque delivery to the wheels.
02What comes in a gear package?
Front and rear ring and pinion sets in the ratio you choose, plus matching front and rear master install kits with the components needed to overhaul each ring and pinion setup.
03Do the front and rear need the same ratio?
Yes. Front and rear must run the same ratio. A gear package gets you both in the ratio you pick.
04Which ratio should I run?
Start with the ranges above, then check them with our RPM calculator. Or send us your tire size, engine and transmission and we’ll tell you. Every engine and transmission is in our Jeep regear guide.
05My JK has factory 3.21 gears. What else do I need?
A 3.73-and-up carrier for the Dana 30 front. The factory 3.21 front carrier won’t take 3.73 or higher. The rear keeps its factory carrier, and so do JKs with factory 3.73s or 4.10s. Not sure what you have? Send us a message with your VIN.
06Can I install gears myself?
Setting up gears takes the right tools and experience. We publish our differential setup specs and break-in procedure so you and your installer start from the right numbers.
07Do I need to reprogram after a regear?
Yes. Until you update the tire size and axle ratio, your Jeep is still calculating speed from the factory setup, so your speedometer reads wrong. The Tazer JK Blaster sets both.
08Can I run 35 spline axles?
On a non-Rubicon rear, yes, with a 35 spline aftermarket locker. The factory differential takes 30 spline shafts (32 on the Rubicon), so if you keep it, run the kit that matches.
09What’s the warranty?
Ring and pinions: 2 Year Limited Warranty. Discovery Series axles: 10 Year Limited Warranty, covering manufacturing defects, breakage, bent axles and twisted splines (bearings and seals are wear items). Front axle kit u-joints: 1 Year, or 10 Year Limited with our HD u-joints. Driveshafts: Limited Lifetime Warranty for twisted tubing or broken welds. Diff covers, master install kits and bearing & seal kits: 1 Year Limited Warranty. Full details on our warranty page.
Join the Revolution
Not sure what fits your build?
Send us your tire size, trim, engine and transmission and we’ll tell you what you need.
Monday-Friday, 7:00 AM - 6:30 PM Central Time, excluding major US holidays