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USA Standard Gear Jeep CJ Dana 30 Axle Replacement Left Hand Inner 27 Spline 4340 Chrome Moly 72-81
$200.89

USA Standard Gear ZA W38789 Axle: Precision and Performance for Your Jeep

If you're looking to upgrade your Jeep's drivetrain, the USA Standard Gear ZA W38789 axle is a top-notch choice. Designed specifically for the 1972-1981 Jeep CJ5 and 1976-1981 Jeep CJ7, this axle is built to handle the rigors of off-road adventures while providing the reliability you need on the road.

Key Features

  • 27 Spline: Ensures a strong connection for improved torque transfer.
  • Length: 27.01 inches, perfectly fitting the Dana Spicer 30 configuration.
  • Left Hand Inner: Specifically designed for the left side of your Jeep's axle assembly.
  • U-Joint Size: 5-760X, compatible with a variety of U-joint setups.
  • Material: Crafted from 4340 Chromoly, known for its durability and strength.

Fitment Details

This axle is compatible with:

  • Jeep CJ5 (1972-1981)
  • Jeep CJ7 (1976-1981)

Durability You Can Trust

With a 5-year warranty against manufacturer defects, you can rest assured that your investment is protected. The precision manufacturing technologies used in the production of the ZA W38789 ensure that you’re getting a competition-tough axle that stands up to the toughest conditions.

Real-World Feedback

Many Jeep CJ owners have reported significant improvements in their vehicle's performance after installing the ZA W38789. One CJ7 owner noted, “I installed this axle last month, and it has transformed my Jeep's off-road capabilities. The fit was perfect, and I’ve had no issues with clearance, even when hitting the trails hard.”

Upgrade your Jeep's performance with the USA Standard Gear ZA W38789 axle and experience a noticeable difference in handling and durability. Whether you're cruising city streets or tackling rugged terrains, this axle is built to perform.

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Vehicle Make/Model
Jeep CJ5 1972-1981 Base
Jeep CJ5 1975-1981 Renegade
Jeep CJ5 1977-1980 Golden Eagle
Jeep CJ5 1980-1981 Laredo
Jeep CJ7 1976-1981 Base
Jeep CJ7 1976-1981 Renegade
Jeep CJ7 1977-1979 Golden Eagle
Jeep CJ7 1980-1981 Laredo
Jeep CJ7 1980 Golden Hawk

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Who is USA Standard Gear?

USA Standard Gear is a company that supplies high-quality parts for the automotive industry. They are a one-stop-shop for all your drivetrain component needs and have one of the industry's most comprehensive parts list and inventory. Today, they are considered the leading supplier of these parts in the United States.

Drivetrain Experts

The company offers various parts ranging from axles, differential gears, lockers, limited slips, drivelines, and more. It is built by a team of craftsmen who has years of experience when it comes to assembling and modifying their own builds. This passion is what drives the company to create some of the best products in the market.

Quality In Every Product

All their parts are manufactured in their facility equipped with the latest and most sophisticated tools available today. They also have two high-tech testing labs to ensure that every product comes out with the company's quality.

The USA Standard Gear engineering team is constantly on edge trying to find ways to develop and further improve their products. That is why they can produce innovative parts that adapt to the changing trend in the automotive world.

Purchase USA Standard Gear at Vivid Racing

If you are in the market for reliable and top-notched drivetrain components, then USA Standard Gear is the brand for you. With years of experience developing their products, they have provided their customers with parts they could trust, whether it's a replacement component or an upgrade. 

To know more about USA Standard Gear, visit Vivid Racing and check out their list of offerings that fit your specific requirement.





USA Standard Gear® ("USA Standard") warrants the original retail purchaser that all USA Standard products will be free from defects in materials and workmanship for the periods shown herein. USA Standard makes no other warranty of any kind, express or implied. All other warranties, including but not limited to an implied warranty of merchantability or fitness for a particular purpose, are excluded. This warranty is offered provided that the USA Standard product has been installed and maintained in accordance with USA Standard instructions, and that it has not been subject to modification, accident, abnormal use or misuse. At USA Standard's discretion, this warranty may be voided if installation of USA Standard product(s) occurs on vehicles with tires that exceed USA Standard Maximum Recommended Tire Size.

Upon notification of a warranty claim, USA Standard shall investigate the claim of defect, and, in the event of a verified defect, shall, at their sole choice, either repair the defective product or replace it.

This warranty does not cover, and USA Standard shall not be liable for, incidental or consequential damages, including loss of time, road service charges, labor charges, inconvenience, loss of vehicle use, loss of revenues, or loss or damage to personal property (including loss or damage to vehicle parts due to the failure of the USA Standard product). In addition, this warranty does not cover, and USA Standard shall not be liable for, any undertaking, representation, or agreements made by dealers or other third parties selling USA Standard Gear® products, except where such agreements are within the provisions of this Warranty statement. Also, this warranty does not cover damage to the axle caused by or facilitated by failure of a non-USA Standard component.

This agreement offers you specific legal rights. You may also have other rights which vary from state to state.

USA STANDARD GEAR® WARRANTY BY PRODUCT
USA Standard Product Length of Warranty (From date of sale) NOTES
SpoolAs long as original purchaser owns vehicle in which Spool is originally installed It is normal for Spools to cause tire chatter, squeal, or scrubbing when vehicle is not moving in a straight line. Both rear tires must measure the same height from ground to top of wheel for Spool to function properly without premature wear.
Rear Axle (1040/1050)Five (5) Years Covers parts for five years against manufacturing defects.
Front Axle (Series ZA W)Five (5) Years Five year warranty covering manufacturing defects and axle breakage. This warranty is not transferable to another party. “No Questions Asked” replacement for first warranty return, however, USA Standard Gear reserves the right to either replace axle or refund original purchase price after the first warranty claim. USA Standard Gear (through RANDYS Worldwide Automotive) makes final determination on warranty considerations.
Ring & Pinion Gear SetOne (1) YearWarrantied against manufacturing defects for one (1) year.
Positraction DifferentialOne (1) Year Exclusions apply, does not cover premature clutch wear or abuse. It is normal for Positraction differentials to cause tire chatter, squeal, or scrubbing when vehicle is not moving in a straight line. Both rear tires must measure the same height from ground to top of wheel for differential to function properly without premature wear. Limited slip additive or appropriate friction modifier must be used with oil to reduce Positraction chatter.
Spartan LockerOne (1) YearWarrantied against manufacturers defects for one (1) year.
Install KitsOne (1) Year Includes ZBK, ZPK, and ZK. Covers parts for one year against manufacturing defects.
Spider Gear Kits (ZIK)One (1) YearOne year against manufacturing defects. Exclusions apply, does not cover clutch wear in limited slip differentials.
Replacement Driveshafts (ZDS)One (1) Year Warrantied against manufacturing defects for one (1) year.

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