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

Motive Gear GM7.5-373 Differential Ring and Pinion Set 3.73 Ratio 27-Spline 10-Bolt

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

Part of: Motive Gear Differential Ring and Pinion Gear Sets

Other options in this family: Motive Gear D60-410 Motive Gear D35-355 Motive Gear D35-456 Motive Gear GM10-5-373 Motive Gear GM10-373A

Manufacturer

Picture for manufacturer Motive Gear

Part Number

GM75-373
9 reviews
Sale Price

$267.23

2 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 Motive Gear GM7.5-373 is a precision-engineered differential ring and pinion gear set designed for GM 7.5" and 7.625" (7.6" IFS) 10-bolt rear axles. Featuring a 3.73:1 gear ratio with a 27-spline pinion and 10-bolt ring gear, this gear set is built from 8620 alloy steel and heat-treated for superior strength and long service life.

Key Features:

  • 3.73:1 Gear Ratio — improves torque delivery, acceleration, and towing capability
  • 8620 Steel Construction — precision-machined for strength, durability, and smooth, quiet operation
  • 10-Bolt Ring Gear / 27-Spline Pinion — direct-fit for GM 7.5" and 7.625" differentials
  • Compatible with GM 7.5", 7.625", and 7.6" IFS differential housings
  • Engineered to meet or exceed OEM specifications
  • Suitable for street, off-road, and performance driving applications
  • Backed by a 1-year / 50,000-mile warranty

Motive Gear offers one of the broadest selections of ring and pinion ratios in the aftermarket, covering applications from daily drivers to full-competition builds. The GM7.5-373 delivers a numerically higher 3.73 ratio for improved low-end torque and towing performance compared to stock gearing, making it a popular upgrade for trucks, SUVs, and muscle cars running the GM 10-bolt 7.5" rear end. A compatible master install kit is recommended for professional installation.

Products specifications

Fits

Cadillac DeVille 1982-84, Fleetwood 1982-90, Brougham 1987-90; Chevrolet Camaro 1977-2002, S10 1982-2004, Impala 1977-85, 1994-96, Colorado 2004-13, Malibu 1973-83, Blazer 1995-2005, Caprice 1977-96, El Camino 1977-87 + 55 more models

Calculator

Gear Ratio Calculator

Cover Bolts

10

Installation Kit Included

No

Pinion Gear Teeth

11

Pinion Shaft Diameter (in)

1.438 in.

Pinion Spline Count

27

Quantity

Sold as a set.

Ring and Pinion Ratio

3.73:1

Ring Gear Bolts

10

Ring Gear Diameter (in)

7.500 in.

Ring Gear Rotation

Standard

Ring Gear Teeth

41

Tool

Transmission Lookup

Pinion Shaft Diameter

1.438

Ring Gear Tooth Quantity

41

Differential Case Design Type

GM 7.6 IFS

Ring Gear Bolt Quantity

10

Differential Carrier Break

3.23 and Higher

Ring Gear Material

8620 Steel

Pinion Gear Tooth Quantity

11

Differential Case Design Type

GM 7.625

Ring Gear Diameter

7.5

Differential Case Design Type

GM 7.5

Ring and Pinion Gear Ratio

3.73

Cover Bolt Quantity

10

Prop 65

WARNING: Cancer - www.p65warnings.ca.gov

Fast! Fast, fast, Fast! Fast, fastFast! Fast, fast

Ordered a Flex-a-lite 420 dual shrouded fan on Wednesday night and had it in my hands saturday afternoon! Great price and prompt shipping.

Overall quick shipping and nothing was missing or broken!<br>A little tricky install but fast with some help.<br>I like the fact that they have competitive pricing and there site is nice and secure.

Great price and super fast shipping thanks.

Autoplicity had the best price on the part I needed and was in stock. Easy ordering process and good correspondence.

fast shipping and great prices

Received my product today was happy with the item purchased and will buy again from Autoplicity. Was received in a timely manner and like described

Helpful-reasonable prices-reasonable shipping-prompt.

Fast -regular- shipping even on large items. I was skeptical at first but I am happy and don't regret my purchase!!!

Share icon
Return Policy
Returns are easy at THMotorsports

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