See more parts for Chrysler Imperial
Select the year of your Chrysler Imperial:
Product thumb
USA Standard Gear Chrysler 8.75 Inch Ring and Pinion Gear Set 3.90 Ratio ZG C8.89-390
$357.89

If you're diving into a project that involves your classic Chrysler or Dodge, you might want to take a serious look at the USA Standard ring and pinion sets. I've had my fair share of installs, and trust me, these sets bring a whole new level of confidence to the table. They’ve got a solid reputation for a reason, and I can say from experience that they deliver when it counts.

Now, let's get into the nitty-gritty. This set is designed to fit the Chrysler 8.75 inch 89 case housing, which is a pretty common setup in many classic rides. The ring gear has a diameter of, you guessed it, 8.75 inches, and it sports a 3.90 ratio. That means you’re going to get a nice balance between power and efficiency, whether you’re cruising down the highway or hitting the back roads. With 29 splines on the pinion and 12 bolts holding that ring gear in place, you know it's built to handle some serious torque without flinching.

One thing I really appreciate is that USA Standard Gear stands behind their products with a one-year warranty against manufacturer defects. It’s always nice to have that peace of mind, especially when you’re working on something that you plan to rely on for years to come.

As for fitment, this gear set is versatile. It fits a range of classic models, including:

  • Chrysler Imperial (1961-1973)
  • Chrysler New Yorker (1961-1973)
  • Dodge Challenger (1970-1973)
  • Dodge Charger (1966-1973)
  • Dodge Coronet (1965-1973)
  • Dodge D100 Pickup (1968-1973)
  • Dodge D200 Pickup (1968-1973)
  • Dodge Dart (1961-1973)
  • Plymouth Barracuda (1964-1973)
  • Plymouth Road Runner (1968-1973)
  • And many more!

So, if you're looking to upgrade your ride with something that’s tried and true, the USA Standard ring and pinion set is definitely worth considering. It's all about making your classic vehicle perform the way it was meant to, and these gears are a solid step in the right direction.

Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
1961-1973
Chrysler Imperial
1961-1973
Chrysler New Yorker
1970-1973
Dodge Challenger
1966-1973
Dodge Charger
1965-1973
Dodge Coronet
1968-1973
Dodge D100 Pickup
1963-1967
Dodge D100 Series
1968-1973
Dodge D200 Pickup
1961, 1964-1967
Dodge D200 Series
1961-1973
Dodge Dart
1965-1973
Dodge Monaco
1966-1973
Dodge Polara
1969-1973
Dodge W200 Pickup
1964-1973
Plymouth Barracuda
1970-1973
Plymouth Duster
1967-1971
Plymouth GTX
1968-1973
Plymouth Road Runner
1970-1973
Plymouth Satellite

USA Standard Gear Banner

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.

Check out these other great products