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EXCEL from Richmond Differential Ring and Pinion - GM75390
EXCEL from Richmond Differential Ring and Pinion - GM75390 - Image 2 EXCEL from Richmond Differential Ring and Pinion - GM75390 - Image 2

EXCEL GM75390 Differential Ring and Pinion

If you're looking for a reliable upgrade to your vehicle's differential, the EXCEL GM75390 Differential Ring and Pinion is a solid choice. Designed specifically for a range of GM vehicles, this part offers OEM quality at an affordable price, ensuring you get the performance you need without breaking the bank.

Why Choose the GM75390?

The GM75390 features a gear ratio of 3.90, making it an excellent option for those who want to enhance their vehicle's acceleration and towing capabilities. Whether you're a fan of classic Chevys or modern GMCs, this differential gear fits a broad lineup of vehicles, ensuring compatibility with your ride.

Fitment

This differential ring and pinion set is compatible with various GM models, including:

  • Buick Apollo (1973-1975)
  • Buick Regal (1977-1987)
  • Chevrolet Camaro (1982-2002)
  • Chevrolet Impala (1977-1985 & 1994-1996)
  • GMC Jimmy (1983-2005)
  • Oldsmobile Cutlass (1977-1981)
  • Pontiac Firebird (1977-2002)

Technical Specifications

  • Ring Gear Diameter: 7.5 inches
  • Ring Gear Tooth Quantity: 39
  • Pinion Gear Tooth Quantity: 10
  • Pinion Spline Count: 27
  • Pinion Shaft Diameter: 1.438 inches
  • Ring Gear Bolt Quantity: 10
  • Cover Bolt Quantity: 10
  • Material: 8620 Steel
  • Differential Case Design Type: GM 7.625
  • Carrier Break: 3.23 and higher
  • Position: Fits both rear and front differentials

Installation Insights

Installing the GM75390 is straightforward for those familiar with differential work. It's a perfect fit for GM 7.5"/7.625" differentials and is designed to work seamlessly with 3.23 ratio carriers and higher. Make sure to have the right tools on hand, and you'll be back on the road with improved performance in no time.

Customer Feedback

Owners of classic Chevy Impalas have noted how the GM75390 significantly improved their vehicle's response and power delivery, especially when towing. One Chevrolet Camaro owner shared, "After installing the GM75390, I noticed a huge difference in acceleration. It feels like a whole new car!"

Important Notes

Before purchasing, please ensure your vehicle meets the compatibility requirements. The GM75390 is designed for specific GM models, and proper fitment is crucial for optimal performance.

California Proposition 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Proposition 65

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

Vehicle
1973-1975
 Buick Apollo
1977-1981
 Buick Century
1991-1996
 Buick Commercial Chassis
1976-1985
 Buick Electra
1977-1983
 Buick Estate Wagon
1975-1985
 Buick LeSabre
1977-1987
 Buick Regal
1977-1978
 Buick Riviera
1991-1996
 Buick Roadmaster
1975-1979
 Buick Skylark
1987-1990
 Cadillac Brougham
1982-1984
 Cadillac DeVille
1982-1990
 Cadillac Fleetwood
1985-2005
 Chevrolet Astro
1987-2001
 Chevrolet Blazer
1982-2002
 Chevrolet Camaro
1977-1996
 Chevrolet Caprice
1977-1987
 Chevrolet El Camino
1977-1985, 1994-1996
 Chevrolet Impala
1983-1986
 Chevrolet K5 Blazer
1973-1983
 Chevrolet Malibu
1978-1988
 Chevrolet Monte Carlo
1976-1979
 Chevrolet Nova
1982-2004
 Chevrolet S10
1983-2005
 GMC Jimmy
1982-1990
 GMC S15
1985-1989, 1991-2000
 GMC Safari
1991-2004
 GMC Sonoma
1991
 GMC Syclone
2006-2010
 Hummer H3
2009-2010
 Hummer H3T
1988
 Isuzu Pickup
1991-2002
 Isuzu Rodeo
1977-1984
 Oldsmobile 98
1991-1994, 1996-2004
 Oldsmobile Bravada
1977-1979
 Oldsmobile Custom Cruiser
1977-1981
 Oldsmobile Cutlass
1978-1979
 Oldsmobile Cutlass Calais
1980-1983
 Oldsmobile Cutlass Cruiser
1978-1979
 Oldsmobile Cutlass Salon
1977-1985
 Oldsmobile Delta 88
1976-1979
 Oldsmobile Omega
1977-2002
 Pontiac Firebird

EXCEL Banner

Who is Excel?

Excel is a brand under Richmond that is best known for its high-quality drivetrain products for the automotive industry. They specialize in creating durable, high-quality differential components used both on the track and on the street. Today, they are the leading brand when it comes to differential components in the market.

Racer’s Brand Of Choice

The company offers premium differential kits and components that are used by many racers everywhere. Their rock-solid design aims to provide maximum performance and safety during extreme and tough driving conditions.

Your Drivetrain Component Experts

For more than 80 years, the company has provided quality aftermarket parts for different industries. It includes the agriculture, construction, marine, and automotive sector. They have a wide range of drivetrain products such as spools and mini spools, transmissions, ring and pinion gear, synthetic gear oils, and transmission fluids. They have a comprehensive list of products and even have parts for vehicles made from the 1940s up to the present.

State-of-the-Art Facility

To ensure that all their products come out the way they designed them, the company utilizes the latest and most advanced equipment available in the market. It allows them to create parts with precision cuts with very minimal tolerances.

Purchase  Excel Products At Vivid Racing

If you are in the market for quality drivetrain components for your vehicle, then Excel is the brand for you. Whether it is a classic car or a modern one, they would have the right set for you. To know more about Excel and what they can offer, visit Vivid Racing and check out their list of products that fit your specific needs.






Installation Instructions

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