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Front Differential Carrier - 3.73-4.88 Gear Ratio (07-18 Jeep Wrangler JK)

Item J21155
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$454.99 (kit)

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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Front Differential Case
      • Internal Parts are Included
      • Hardware is Included
      • Covered by the Manufacturer's Limited 5-Year Warranty
      • Designed for 3.73 - 4.88 Gear Ratios
      • Fits 2007-2018 Wrangler JK


      Specs. If you need a replacement differential case, and you need every part included, then this Front Differential Case With Internal Parts is a great choice. It's made by one of the leaders in the industry, Omix-ADA, and includes everything you need for total replacement.

      Construction. This part is not only made to be strong and durable by one of the most trusted names in Jeep aftermarket parts, but it's also covered by a 5-year limited warranty. It's made to factory specifications, so even though it is a relatively complicated installation, there will be no drilling or modification necessary.

      Application. This Front Differential Case includes internal parts that is for 3.73 - 4.88 Gear Ratios for the 2007-2018 JK Wrangler models.

      Fitment: 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

      MPN# 16503.67

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (2)

      Write a Review

      Ratings Summary

      5 out of 5 overall rating from 2 customers

      Installation Time: Full Day

      • November 29, 2017

        5 2017 Wrangler - ClaudioM Installation Time: Afternoon

        Front differential case

        The differential case works more smooth than i thought, before I installed these with my 3.5” lift and 35” tires, my Jeep was driving kinda sluggish so I installed this, along with other gears and pinions to give me more power and eliminate that sluggish. The picture was obviously taken before the install, kinda hard to take a pic of it when it’s installed

        Helpful (6)
      • July 17, 2017

        5 2013 Wrangler - AbdullahA Installation Time: Weekend

        Omix-ADA Front Differential Case w/ Internal Parts

        I really liked those so i can fit 4.56 gears for the front diff case

        Helpful (6)

      Questions & Answers (1 answers)

      1 Top Rated Question

      I wanted to confirm that this part is necessary if i wanted to upgrade my 2017 JKU from the stock 3.21 gears to 4.88 gears. Is it correct that the 4.88's will not fit in the stock front case that the 3.21's sit in?

      • Yes, it is correct that 4.88s will not fit in the stock case that your 3.21s came in from Jeep. You will need the Omix-ADA Front Differential Case for install of your new gears. You will only need this case for the front axle though, your rear axle does not require a new case.

      Helpful (0)
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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Complete Differential Case
      • (2) Bearings
      • (10) Ring gear bolts

      Tech Specs

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