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Fix a Known Weak Point: Jeep models equipped with NP231 transfer cases share one common vulnerability. The factory slip yoke rear output shaft. While adequate for stock street use, this design quickly becomes a liability once suspension lifts and larger tires are added, increasing stress on the rear output shaft and driveline components. Built for Lifted Performance: Rough Country's Heavy Duty Slip Yoke Eliminator Kit replaces the factory slip yoke with a fixed yoke design to dramatically improve driveline strength and reliability. By correcting driveline angles, this upgrade helps eliminate vibrations caused by suspension lifts while allowing the use of a double cardan CV driveshaft for smoother on-road driving and improved off-road performance. Trail-Ready Durability You Can Trust: Constructed from high-strength materials, this kit is engineered to handle the added load and abuse that lifted Jeeps encounter on and off the trail. This kit includes everything needed to properly modify your transfer case and requires Rough Country's extended travel driveshaft, which helps prevent driveline vibration and protects the rear output shaft from failure.
Features
Improved Driveline Strength: Converts the factory slip yoke to a fixed yoke design for increased driveline durability and reliability under load.
Eliminates Driveline Vibration: Reduces vibrations commonly caused by suspension lifts and worn slip yokes for smoother on-road and off-road performance.
Ideal for Lifted Jeeps: Corrects driveline angles on lifted applications and allows the use of a double cardan CV driveshaft.
Heavy-Duty Construction: Manufactured from high-strength materials to withstand off-road abuse and demanding trail conditions.
Bolt-On Installation: Designed for a straightforward install using factory mounting points with no drilling or cutting required.
Notes
Most products ship directly from our vendor warehouses or distributor network. Shipping times can vary depending on the brand, product size, availability, and destination.
Large or oversized items such as lift kits, wheels, tires, bumpers, exhaust systems, and audio enclosures may require additional handling time or freight shipping.
If there is ever an issue with availability, shipping cost, or delivery timing, we will contact you before moving forward with the order.
Returns may be accepted on most new, unused, unopened items within 30 days of delivery. Items must be in original packaging and in resellable condition.
Installed, used, damaged, missing-parts, electrical, special-order, clearance, or custom-built items may not be eligible for return.
Return shipping is normally the customer’s responsibility unless the return is due to our mistake, such as the wrong item being shipped.
Before sending anything back, please contact Kaos Offroad so we can review the order and provide return instructions. Returns sent without approval may be refused.
Some products are vehicle-specific. Please verify fitment before ordering. If you are unsure, contact us with your year, make, model, sub-model, and any relevant details before purchasing.
Original shipping charges, freight charges, and vendor restocking fees may be non-refundable depending on the item and supplier policy.




