USA Standard Gear Ring & Pinion Set for Dana 44 Reverse Rotation

In this review of the USA Standard Gear (ZG D44R-538R) ring and pinion set, the bottom line is clear: this is a practical replacement for technicians and DIYers who need a reliable Dana 44 reverse rotation gear set in a 5.38 axle ratio. The reviewer found the kit useful for straightforward installs and appreciated that it comes from a manufacturer offering a one year warranty against defects. If you want a no-frills, value-oriented ring and pinion that covers common and harder to source applications, this set deserves consideration.

Key Features

• Correct ratio: Includes the 5.38 axle ratio gearing required for reverse rotation Dana 44 differentials, which simplifies matching to existing driveline specs.
• Wide application coverage: USA Standard Gear supplies ring and pinion options for common and hard to find applications, helping installers find the right fit without chasing specialty builders.
• One year warranty: The standard one year warranty against defects provides a reasonable safeguard if manufacturing issues appear after installation.
• Focused drivetrain range: The brand offers complementary parts like axles, bearings, seals and installation kits, making it easier to source all needed components for an overhaul.
• Fit and setup: Many customers report straightforward setup and compatibility, which can cut install time when backing into a rebuild or swap.

Who It's For

This ring and pinion set is best for independent mechanics, home garage enthusiasts, and fleet shops replacing or repairing a Dana 44 reverse rotation differential where a 5.38 ratio is required. It suits projects that value cost-effective replacement parts backed by a basic warranty and a brand that supplies related drivetrain components.

It may be less suitable for someone seeking a premium, noise-optimized performance gear set tuned for high horsepower race builds, since customers report mixed results on noise and long-term durability; those users might prefer a specialized, performance-focused manufacturer.

Pros & Cons

Pros

• Good overall value for money relative to OEM-priced alternatives.
• Works well when properly installed, with several customers reporting trouble-free operation on vehicles like a 1996 Impala SS.
• Backed by a one year warranty and a full line of related drivetrain parts to complete a rebuild.
• Available for both common and harder to find applications, reducing sourcing headaches.

Cons

• Customers report mixed results on noise level, so pinion pattern and preload setup are important to avoid whine.
• Fit and long-term durability get varied feedback, indicating careful installation and inspection are advised.

Specifications

Brand	USA Standard Gear
Model	ZG D44R-538R
Application	Dana 44 reverse rotation differential
Axle ratio	5.38
Warranty	Standard one year warranty against defects
Includes	Ring and pinion gear set (part of drivetrain line)

Our Verdict

The USA Standard Gear D44R-538R ring and pinion set is a solid, cost-conscious replacement for Dana 44 reverse rotation differentials when a 5.38 ratio is needed. It offers good functionality and value for typical repair and restoration work, but installers should take care with setup to avoid noise and to ensure a durable fit. For most owners seeking a dependable, warrantied replacement without premium pricing, this set is a sensible choice.

Frequently Asked Questions

Is this the correct ratio for a Dana 44 reverse rotation axle?
Yes, this specific set is for a 5.38 axle ratio and is manufactured for reverse rotation Dana 44 differentials.

Does the product include a warranty?
USA Standard Gear provides a standard one year warranty against defects on their ring and pinion sets.

Will this reduce gear noise?
Noise performance varies by install and vehicle; customers report mixed results, so correct pinion pattern, preload and break-in are important to minimize whine.