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We have made it easy to use Genuine Spicer Parts for your Jeep Gear Swap Upgrade Service

If you’re upgrading to a Dana 44™ AdvanTEK® axle on your JL to accommodate an increase in tire size, look for your ratio here, and then discover the additional components you’ll need to finish the job. For help, check out our calculators at SpicerParts.com/Calculators.

Jeep JL Products

When it is time to regear your Jeep remember to demand Genuine Spicer Parts

Spicer® Ring & Pinion Upgrade Bundles for 2018 and Newer Jeep® JL with Dana AdvanTEK® Axles

Spicer® Bundle for JL Sport/Sahara-OPEN Rear Diff 3.45 ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 30™ AdvanTEK® Front 10006253
Master Overhaul Kit Dana 30™ AdvanTEK® Front 10040313
Spicer® Ring & Pinion Dana 35™ AdvanTEK® Rear 10060460
Master Overhaul Kit Dana 35™ AdvanTEK® Rear 10040452

Spicer® Bundle for JL Sport/Sahara with 3.0L Dsl Engine 3.73 ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 44™ AdvanTEK® Front 10046055
Master Overhaul Kit Dana 44™ AdvanTEK® Front 10040469
Spicer® Ring & Pinion Dana 44™ AdvanTEK® Rear 10062017
Master Overhaul Kit Dana 44™ AdvanTEK® Rear 10040478

Spicer® Bundle for JL Sport/Sahara-Limited Slip Rear Diff 3.73 ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 30™ AdvanTEK® Front 2005021-5
Master Overhaul Kit Dana 30™ AdvanTEK® Front 10040313
Spicer® Ring & Pinion Dana 44™ AdvanTEK® Rear 10062017
Master Overhaul Kit Dana 44™ AdvanTEK® Rear 10040478

Spicer® Bundle for JL Sport/Sahara with 3.0L Dsl Engine 4.10 ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 44™ AdvanTEK® Front 10006435
Master Overhaul Kit Dana 44™ AdvanTEK® Front 10040469
Spicer® Ring & Pinion Dana 44™ AdvanTEK® Rear 10062033
Master Overhaul Kit Dana 44™ AdvanTEK® Rear 10040478

Spicer® Bundle for JL Sport/Sahara-OPEN Rear Diff 4.10 ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 30™ AdvanTEK® Front 2005027-5
Master Overhaul Kit Dana 30™ AdvanTEK® Front 10040313
Spicer® Ring & Pinion Dana 35™ AdvanTEK® Rear 10006548
Master Overhaul Kit Dana 35™ AdvanTEK® Rear 10040452

Spicer® Bundle for JL Sport/Sahara-limited slip Rear Diff 4.10 ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 30™ AdvanTEK® Front 2005027-5
Master Overhaul Kit Dana 30™ AdvanTEK® Front 10040313
Spicer® Ring & Pinion Dana 35™ AdvanTEK® Rear 10062033
Master Overhaul Kit Dana 35™ AdvanTEK® Rear 10040478

Spicer® Bundle for JL Sport/Sahara-OPEN Rear Diff 4.56 ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 30™ AdvanTEK® Front 10026645
Master Overhaul Kit Dana 30™ AdvanTEK® Front 10040313
Spicer® Ring & Pinion Dana 35™ AdvanTEK® Rear 10067221
Master Overhaul Kit Dana 35™ AdvanTEK® Rear 10040452

Spicer® Bundle for JL Sport/Sahara-Limited Slip Rear Diff 4.56 ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 30™ AdvanTEK® Front 10026645
Master Overhaul Kit Dana 30™ AdvanTEK® Front 10040313
Spicer® Ring & Pinion Dana 35™ AdvanTEK® Rear 10067141
Master Overhaul Kit Dana 35™ AdvanTEK® Rear 10040478

Spicer® Bundle for the JL Rubicon 4.88 Ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 44™ AdvanTEK® Front 10051746
Master Overhaul Kit Dana 44™ AdvanTEK® Front 10040469
Spicer® Ring & Pinion Dana 44™ AdvanTEK® Rear 10073110
Master Overhaul Kit Dana 44™ AdvanTEK® Rear 10040478

Spicer® Bundle for JL Sport/Sahara-Open Rear Diff 4.88 ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 30™ AdvanTEK® Front 10026639
Master Overhaul Kit Dana 30™ AdvanTEK® Front 10040313
Spicer® Ring & Pinion Dana 35™ AdvanTEK® Rear 10067231
Master Overhaul Kit Dana 35™ AdvanTEK® Rear 10040452

Spicer® Bundle for JL Sport/Sahara-Limited Slip Rear Diff 4.88 ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 30™ AdvanTEK® Front 10026639
Master Overhaul Kit Dana 30™ AdvanTEK® Front 10040313
Spicer® Ring & Pinion Dana 44™ AdvanTEK® Rear 10073110
Master Overhaul Kit Dana 44™ AdvanTEK® Rear 10040478

Spicer® Bundle for JL Rubicon 4.56 ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 44™ AdvanTEK® Front 10050939
Master Overhaul Kit Dana 44™ AdvanTEK® Front 10040469
Spicer® Ring & Pinion Dana 44™ AdvanTEK® Rear 10067141
Master Overhaul Kit Dana 44™ AdvanTEK® Rear 10040478

Spicer® Bundle for JL Sport/Sahara-OPEN Rear Diff 5.13 ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 30™ AdvanTEK® Front 10026642
Master Overhaul Kit Dana 30™ AdvanTEK® Front 10040313
Spicer® Ring & Pinion Dana 35™ AdvanTEK® Rear 10067244
Master Overhaul Kit Dana 35™ AdvanTEK® Rear 10040452

Spicer® Bundle for JL Sport/Sahara-Limited Slip Rear Diff 5.13 ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 30™ Front 10026642
Master Overhaul Kit Dana 30™ Front 10040313
Spicer® Ring & Pinion Dana 44™ Rear 10067157
Master Overhaul Kit Dana 44™ Rear 10040478

Spicer® Bundle for JL Rubicon 5.13 ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 44™ AdvanTEK® Front 10051004
Master Overhaul Kit Dana 44™ AdvanTEK® Front 10040469
Spicer® Ring & Pinion Dana 44™ AdvanTEK® Rear 10067157
Master Overhaul Kit Dana 44™ AdvanTEK® Rear 10040478

Spicer® Bundle for the JL Rubicon 5.38 Ratio

Description Axle Model Spicer Part #
Spicer® Ring & Pinion Dana 44™ AdvanTEK® Front 10050979
Master Overhaul Kit Dana 44™ AdvanTEK® Front 10040469
Spicer® Ring & Pinion Dana 44™ AdvanTEK® Rear 10067204
Master Overhaul Kit Dana 44™ AdvanTEK® Rear 10040478

Watch Dana Aftermarket Engineering Manager Zack Heisey go through a Ring and Pinion Gear Swap for the Jeep Wrangler JL in this episode of Dana Crate Axle Garage.

Front and Rear Axle Components for Jeep® Wrangler® JL

Spicer® Front Axle Components for Dana 30™ Axles on the Jeep® Wrangler® JL  

Description Spicer Part #
Friction Modifier/POSI Additive 43161
RTV Sealant (2.8 oz.) 38615
Inner Pinion Bearing Kit 10062707
Collapsible Spacer 10009299
Outer Pinion Bearing Kit 10062709
Pinion Bearing Slinger - Outer 2005565
Pinion Oil Seal 2014762-1
Pinion Nut 44189
Carrier Cover Bolts 10050881
Differential Bearing Kit 10062385
Ring Gear Bolt 41221
Ring Gear Bolt - 10 pk. 10040448
Companion Flange Assy. 10009253
Transfer Case End Yoke (1310 Series) 10016266* 
Transfer Case End Yoke (1350 Series) 10016268* 
Axle Shaft Nut (JK/JL) 2008564

Spicer® Rear Axle Components for Dana 35™ AdvanTEK® on the Jeep® Wrangler® JL

Description Spicer Part #
Friction Modifier/POSI Additive 43161
RTV Sealant (2.8 oz.) 38615
Inner Pinion Bearing Kit 10063491
Outer Pinion Bearing Kit 2014967-2
Pinion Shim Kit 10040465
Differential Bearing Kit 10063464
Differential Shim Kit 10040466
Pinion Oil Seal  2010953-2
Axle Shaft Wheel Bearing 565904
Axle Shaft Wheel Bearing Retainer 10032011
Wheel Seal 2021013-1
Axle Shaft Wheel Stud 10047625
Pinion Nut 2009624
Collapsible Spacer 10008365
Companion Flange Assy. 10020112
Ring Gear Bolts 10008806
Ring Gear Bolts - 10 pk. 10040474
Transfer Case End Yoke (1310 Series) 10016266*
Transfer Case End Yoke (1350 Series) 10016268*

Spicer® REAR Axle Components for Dana 44™ AdvanTEK® Axles on the Jeep® Wrangler® JL

Description Spicer Part #
RTV Sealant (2.8 oz.) 38615
Friction Modifier/POSI Additive 43161
Inner Pinion Bearing Kit 10071953
Outer Pinion Bearing Kit 2014578-2
Pinion Bearing Shim Kit 10040475
Differential Bearing Kit 10071915
Differential Bearing Shim Kit 10040476
Collapsible Spacer 10008361
Pinion Seal 10039487
Companion Flange 10020110
Pinion Nut 2009625
Transfer Case End Yoke (1310 Series) 10016266*
Transfer Case End Yoke (1350 Series) 10016268* 
Differential Cover Bolts 10050881
Ring Gear Bolts 10008806
Ring Gear Bolts - 10 pk. 10040474
Wheel Bearing Retainer - Narrow Track 10032011
Wheel Bearing Retainer - Wide Track 10032012
Wheel Bearing Assy. 565903-1
Outboard Axle Shaft Seal 10026762
Axle Shaft Bolt 10047625

Jeep® Wrangler® JL Torque Specifications

Model Pinion Bearing Preload (Inch/Lbs) Backlash (.001 Inch) Ring Gear Bolt Torque (Foot/Lbs) Bearing Cap Torque (Foot/Lbs)
Dana 30 JL 15-20 6-10 80 60
Dana 35 JL Rear 15-20 6-10 135 50
Dana 44 JL Front 15-20 6-10 135 70
Dana 44 JL Rear 14-19 6-10 135 70