49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1
49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1
49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1
49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1
49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1
49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1
49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1
49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1
49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1
49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1

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49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1

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Brand : Richmond Gear/Motive Gear
Differential Ring & Pinion 49-0280-1 for GM 8.875" Truck Axles with a 3.73 ratio.
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49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1
49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1
View Detail
Type
Ring & Pinion Gears
Title
49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1
Price
$381.99 USD
Vendor
Richmond Gear/Motive Gear
Description
Richmond Gear 49-0280-1 Ring & Pinion Set – 3.73 Ratio.Engineered for GM 8.875" (12-Bolt) truck axles, the Richmond Gear 49-0280-1 ring and pinion set delivers dependable strength and quiet operation.It offers a precise 3.73 ratio and is built to handle demanding torque and load conditions using durable 8620 steel.

More about this item : 49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1

Richmond Gear 49-0280-1 Ring & Pinion Set – 3.73 Ratio.

Engineered for GM 8.875" (12-Bolt) truck axles, the Richmond Gear 49-0280-1 ring and pinion set delivers dependable strength and quiet operation.

It offers a precise 3.73 ratio and is built to handle demanding torque and load conditions using durable 8620 steel.

49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1
Key Features
  • Durable 3.73 Ratio Gear Set for GM Trucks – Specifically engineered for GM 8.875" (12-Bolt) truck axles, this Richmond Gear ring & pinion set delivers reliable performance and precise torque transfer in classic Chevy and GMC applications
  • Built for Strength & Longevity – Constructed from premium 8620 steel, these gears offer exceptional durability, smooth operation, and reduced gear noise, ideal for restoration, towing, and off-road use
  • Fits Classic Chevy/GMC Models (1964–1982) – Designed for compatibility with C/K Series pickups, Blazer, Suburban, G-Series vans, and other light-duty GM trucks equipped with a 12-bolt rear axle
  • Carrier and Yoke Notes – Requires a 3.73 or numerically higher ratio carrier; 1963–1964 applications require a 30-spline pinion yoke sold separately
  • Replaces Major Competitor SKUs – Direct replacement for Motive Gear GM12-373, EXCEL 12BT373, and Richmond Gear 80-0416-1
  • Backed by a 2-Year / 100,000-Mile Warranty for performance assurance
Technical Specifications
  • Length : 15.0 lb
  • Width : 11.0 lb
  • Height : 5.25 lb
  • Weight : 13.55 lb
Product Identifiers
  • ASIN B003JBCQRM
  • UPC: 698231680735
Shipping Information
  • Ships From : United States
  • Brand : Richmond Gear/Motive Gear

Frequently Asked Questions About : 49-0280-1 Richmond Gear Differential Ring & Pinion, For GM 8.875" Truck Axles, Ratio 3.73, 12-Bolt, 30 Spline, Standard Pinion & Ring Tooth -Fits Chevrolet & GMC Replaces GM12-373, 12BT373, 80-0416-1

01 What is the gear ratio of the Richmond Gear 49-0280-1?

The gear ratio is 3.73.

02 What material is the Richmond Gear 49-0280-1 made from?

It is made from premium 8620 steel.

03 Which vehicles are compatible with the Richmond Gear 49-0280-1?

It fits GM 8.875" 12-Bolt Rear Axles with 3.73 Ratio in Classic Chevy and GMC Trucks and Vans.

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