Jeep JK Gear Package Deals

Jeep JK Gear Packages Ring and Pinion, Lockers Axles & More.

Jeep JK Gear Packages - Ring and Pinion

Get the Right Differential Gear Ratio at the Right Price!

Our Jeep JK Gear Packages start as low as $499.00
Matching ratio Front and Rear Ring and Pinion sets, complete with Mini Install kits (ideal for low-mileage gear ratio changes). This package comes complete with a 2-Year Warranty and is available in 4.56, 4.88 and 5.13 gear ratios for Non-Rubicon Models (5.38 is also available for Rubicon Models)

Gear Package Upgrades

Upgrade your Ring and Pinion Gear Package for added savings!
Add Locking Differentials, Limited Slip Differentials or Chromoly Axles to your JK Gear Package and . We have lots of options available. If you don’t see what you’re looking for, give us a call!

Detroit Locker –

Automatic, Durable & Dependable
Add a Detroit Locker Dana 44 Rear Locking Differential – $575.00*
Add a Detroit Locker Dana 30 Front Locking Differential – $525.00*

ARB Air Locker -

100% Traction on Demand, Proven Strength and Durability
Go from open to fully locked with the flip of a switch.
Add an ARB Air Locker (Front or Rear) for $850.00*

 

AEV Procal Module -

Multi-function recalibrator for Jeep JK owners.
Recalibrate for Tire and Gear Ratio changes, Speedo Correction, Shift Points and More! A must for 2012 and newer ratio changes.
Add an AEV Procal Module for $130.00*

 

Chromoly Axle Shafts -

Up to 40% Stronger than stock Axle Shafts
Add Chromoly Rear Axles – $325.00*

Add Chromoly Front Axles – $425.00*
Complete with a 10-year Warranty!

 

Truetrac Limited-Slip -

Tough, Smooth and Quiet Performance
Add a Truetrac Limited-Slip for Dana 44 Rear Axle – $435.00*
Add a Truetrac Limited-Slip for Dana 30 Front Axle – $375.00*

*Prices for upgrade items apply when ordered with Gear Packages only. Prices subject to change without notice. Substitutions will effect final package price. Contact our sales department for details. Shipping not included.

2015 Product Catalog

Click the thumbnail above to view our current catalog online or Download a PDF copy and save it on your computer for offline viewing

Featured Item

Ring & Pinions

Sierra Gear

Sierra Gear and Axle produces a premium line of aftermarket ring and pinion sets. These are available for Chrysler, Dodge, Ford, GM, Jeep, Toyota, and Suzuki. These gear sets are designed and engineered to the highest quality specifications for use on the street, off road or on the track.

More Featured Items

eNews & Updates

West Coast Differentials 30 Years

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Products Available for the Following Axle Assemblies:

AMC:
  • AMC Model 20
  • AMC Model 35
TOYOTA:
  • Toyota 7.5”
  • Toyota 8”
  • Toyota Landcruiser
  • Toyota Tacoma
  • Toyota Tundra
CHRYSLER:
  • Chrysler 7.25”
  • Chrysler 8.25”
  • Chrysler 8.75”
  • Chrysler 9.25” Rear
  • Chrysler 9.25” Front
  • Chrysler 10.5”
  • Chrysler 11.5”
DANA SPICER:
  • Dana 30 ™
  • Dana 35 ™
  • Dana 44 ™
  • Dana 50 ™
  • Dana 60 ™
  • Dana 70 ™
  • Dana 80 ™
FORD:
  • Ford 7.5”
  • Ford 8”
  • Ford 8.8”
  • Ford 9”
  • Ford 9.75”
  • Ford 10.25”
  • Ford 10.5”
GM:
  • GM 55 Passenger
  • GM 55 Truck
  • GM Corvette
  • GM 7.25” Front Differential
  • GM 7.5” and 7.625”
  • GM 8”
  • GM 8.2”, GM 8.25” Front Differential
 
  • GM Camaro, Pontiac G8, GTO
  • GM 10 Bolt 8.5” and 8.625”
  • GM 12 Bolt Passenger
  • GM 12 Bolt Truck
  • GM 9.25” Front Differential
  • GM 14 Bolt 9.5”
  • GM 14 Bolt 10.5”

Contact Info

  • West Coast Differentials
  • 2429 Mercantile Drive Suite A
  • Rancho Cordova, CA 95742
  • Toll Free: 800-510-0950
  • Tel: 916-635-0950
  • Fax: 916-635-1105

We Make the Difference

  • At West Coast Differentials we are committed to making your experience with us totally enjoyable. We think top-notch customer service is the most important thing we do. By asking ourselves what makes us different than other companies, our answer is that we deliver the level of customer service that other companies only promise.