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Description
RT Off-Road - Steel Unpainted Ring & Pinion - D30JK488Overview: Ring & Pinion 4. 88 Gear Ratio 24 Spline Pinion Fits all OE or OE Replacement Differential Cases Direct Replacement Crown supports its entire line with a 12 month warranty Application: Year Make Model Submodel Engine Size 2007 2011 Jeep Wrangler 2012 2017 Jeep Wrangler Unlimited Sport 2012 2017 Jeep Wrangler Unlimited Sahara 2016 Jeep Wrangler Unlimited Sport S 2012 2017 Jeep Wrangler Sahara 2016 Jeep Wrangler 75th Anniversary 2012 2017 Jeep
Overview:
Ring & Pinion- 4.88 Gear Ratio
- 24 Spline Pinion
- Fits all OE or OE Replacement Differential Cases
- Direct Replacement
- Crown supports its entire line with a 12-month warranty
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 2007 - 2011 | Jeep | Wrangler | ||
| 2012 - 2017 | Jeep | Wrangler | Unlimited Sport | |
| 2012 - 2017 | Jeep | Wrangler | Unlimited Sahara | |
| 2016 | Jeep | Wrangler | Unlimited Sport S | |
| 2012 - 2017 | Jeep | Wrangler | Sahara | |
| 2016 | Jeep | Wrangler | 75th Anniversary | |
| 2012 - 2017 | Jeep | Wrangler | Sport | |
| 2018 | Jeep | Wrangler JK | Sahara | |
| 2016 | Jeep | Wrangler | Unlimited 75th Anniversary | |
| 2018 | Jeep | Wrangler JK | Unlimited Sahara | |
| 2018 | Jeep | Wrangler JK | Unlimited Sport | |
| 2016 | Jeep | Wrangler | Sport S | |
| 2018 | Jeep | Wrangler JK | Sport |
Specs:
| Axle | Dana 30 |
|---|---|
| Gear Ratio | 4.88 |
Additional Information:
| SKU Number : | D30JK488 |
|---|---|
| Brand : | Crown RT Off-Road |
| UPC : | 849603020509 |
| Part Type : | Ring & Pinion |
| Dimension : | 8.00(L) X 7.50(W) X 4.50(H) |
| Weight : | 9.40 lbs. |
| Color : | Unpainted |
| Material/Finish : | Steel |
| Sold AS : | Each |
|---|---|
| Quantity Required : | 1 |
| Warranty : | 12 Month |
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4.5 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Fascinating and beautifully written.
Format: Hardcover
Clear and compelling reading of the much-neglected history of Carthage -- all its histories had been written by the victors in Rome. BTEW y four-colour photo insert was missing a page....shame on Norton, the puboisher.
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Reviewed in the United States on March 25, 2026
★★★★★ 4
Excellent Overview of Carthage
Format: Hardcover
293 pages of text/maps/b&w figures; 8 pages of color plates; 15 pages of end notes (mostly citations); 20 page Bibliography; 6 page Primary Bibliography; 2 page Acknowledgements; 8 area maps; 1 battle map [Cannae]. This is a well written history of Carthage. It provides a one source overview of the background and history of the city/empire. As a reasonably well read layperson, I am familiar at an overview level with the Punic Wars, Rome, Alexander, and the Alexandrine successor states and this book packaged Carthaginian information very well while adding interesting information that I hadn't come across before. I was somewhat disappointed (hence the 4 star rather than 5 star rating) that there was a very limited drill down to a lower level of detail, particularly from such a noted author. However, this is probably an unfair criticism given the limited amount of archeological information available and the millennia of effort that has been spent in pigeonholing Carthage according to the desired perceptions. I recommend the book highly as a well written overview of Carthage.
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Reviewed in the United States on April 2, 2026
★★★★★ 5
Brilliant book
Format: Hardcover
Brilliant book. An insightful synthesis of history, myth, and archaeology. Highly recommend.
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Reviewed in the United States on February 22, 2026
★★★★★ 5
Excellent
Format: Hardcover
Excellent
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Reviewed in the United States on February 7, 2026
★★★★★ 4
Great substance; lousy writing.
Format: Kindle
Reviewing this book is not an easy task. Previously I had very limited knowledge of this period of history. With no background, I found the subject spellbinding. The author has done a wonderful job of gathering, and reconciling, ancient sources of mixed reliability. But, in undertaking that task, the text becomes repetitive, difficult to follow and frankly just plain boring. In addition, the writing style and format detracts substantially from the pleasure of learning from the substance. Everything from run-on sentences with mixed subjects to unclear antecedents, to character confusion because of similarity of names and the author's expectation that one can remember which player is on stage at any given moment. My main criticism of the book is that the downsides could have been avoided by application of the skills of a decent editor who instinctively would have addressed and corrected the confusion in presentation that made it a very difficult read. I hope that a cleaned up edition is prepared and the book released again; I think the effort would be worth the result.
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Reviewed in the United States on April 21, 2026
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