My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Richmond Gear GM75373OE Ring and Pinion Gear Set 3.73 Ratio GM 7.5" 10-Bolt

(Cadillac DeVille 1982-84, Fleetwood 1982-90, Brougham 1987-90; Chevrolet Camaro 1982-2002, S10 1982-2004, Impala 1977-85, 1994-96 + 60 more models)

Part of: Richmond Gear Excel Differential Ring and Pinion Set

Other options in this family: Richmond Gear F9411 Richmond Gear F88410 Richmond Gear 4900391 Richmond Gear 12BC373T Richmond Gear 6903041

Manufacturer

Picture for manufacturer Richmond Gear

Part Number

GM75373OE
6 reviews
Sale Price

$236.16

4 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Richmond Gear GM75373OE EXCEL series ring and pinion gear set delivers precision-engineered performance for GM 7.5" and 7.625" (10-bolt) differentials. This gear set features a 3.73:1 ratio, providing an excellent balance between acceleration and fuel economy for street and mild performance applications.

Key Features:

  • 3.73:1 gear ratio for improved acceleration and towing capability
  • Designed specifically for GM 7.5"/7.625" (10-bolt) rear differentials
  • Compatible with GM 7.6" IFS (Independent Front Suspension) applications
  • EXCEL series quality with precision-cut gears for quiet operation
  • Heat-treated steel construction for durability and long service life

Installation Requirements:

  • Requires a 3.23 and numerically higher ratio carrier
  • Professional installation and proper setup recommended
  • Complete installation kit with bearings and seals recommended (sold separately)

Richmond Gear's EXCEL line offers quality performance at a competitive price point, making it ideal for enthusiasts looking to upgrade their differential gearing without breaking the budget. Each gear set is manufactured to strict tolerances to ensure proper mesh pattern and quiet operation.

Products specifications

Fits

Cadillac DeVille 1982-84, Fleetwood 1982-90, Brougham 1987-90; Chevrolet Camaro 1982-2002, S10 1982-2004, Impala 1977-85, 1994-96, Colorado 2004-13, Malibu 1973-83, Blazer 1995-2001, Caprice 1977-96, El Camino 1977-87 + 55 more models

Pinion Spline Count

27

Ring Gear Rotation

Standard

Ring Gear Tooth Quantity

41

Pinion Shaft Diameter

1.438

Cover Bolt Quantity

10

Ring Gear Bolt Quantity

10

Pinion Gear Tooth Quantity

11

Differential Carrier Break

3.23 and Higher

Ring and Pinion Gear Ratio

3.73

Ring Gear Diameter

7.5

Ring Gear Material

8620 Steel

Prop 65

Cancer and Reproductive Harm - www.P65Warnings.ca.gov
WARNING: Cancer - www.p65warnings.ca.gov

Differential Case Design Type

GM 7.5

Differential Case Design Type

GM 7.6 IFS

Differential Case Design Type

GM 7.625

Differential Carrier Break

3.23 Ratio and Higher

great site

Great product - prompt service - helpful customer relations - will use them again and recommend them to others

Best price on the internet. A lot cheaper than amazon, so I was pretty surprised.

The item was what i was looking for and the price was right. Item was very good quality. Would order from Autoplicity again.

Very prompt service constantly helping me keep track of my order.

Product (Dee-Zee nerf bars) was exactly as advertised. Buying experience was great. I did contact customer service via email to find out the shipping information. They were very helpful and replied within a few hours.

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy