Motive Gear Differential MGK-129 Ring & Pinion For Dana 30 Standard Front & AMC 20 Rear Gear Ratio 4.56, 10/12-Bolt, 26/28 Spline 9 Pinion & 41 Ring Tooth – Fits Jeep CJ5 (1976–1983), CJ7 (1976–1986)
Motive Gear Differential MGK-129 Ring & Pinion For Dana 30 Standard Front & AMC 20 Rear Gear Ratio 4.56, 10/12-Bolt, 26/28 Spline 9 Pinion & 41 Ring Tooth – Fits Jeep CJ5 (1976–1983), CJ7 (1976–1986)
Motive Gear Differential MGK-129 Ring & Pinion For Dana 30 Standard Front & AMC 20 Rear Gear Ratio 4.56, 10/12-Bolt, 26/28 Spline 9 Pinion & 41 Ring Tooth – Fits Jeep CJ5 (1976–1983), CJ7 (1976–1986)
Motive Gear Differential MGK-129 Ring & Pinion For Dana 30 Standard Front & AMC 20 Rear Gear Ratio 4.56, 10/12-Bolt, 26/28 Spline 9 Pinion & 41 Ring Tooth – Fits Jeep CJ5 (1976–1983), CJ7 (1976–1986)
Motive Gear Differential MGK-129 Ring & Pinion For Dana 30 Standard Front & AMC 20 Rear Gear Ratio 4.56, 10/12-Bolt, 26/28 Spline 9 Pinion & 41 Ring Tooth – Fits Jeep CJ5 (1976–1983), CJ7 (1976–1986)
Motive Gear Differential MGK-129 Ring & Pinion For Dana 30 Standard Front & AMC 20 Rear Gear Ratio 4.56, 10/12-Bolt, 26/28 Spline 9 Pinion & 41 Ring Tooth – Fits Jeep CJ5 (1976–1983), CJ7 (1976–1986)

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Home / Automotive / Replacement Parts / Differential Rings & Pinions

Motive Gear Differential MGK-129 Ring & Pinion For Dana 30 Standard Front & AMC 20 Rear Gear Ratio 4.56, 10/12-Bolt, 26/28 Spline 9 Pinion & 41 Ring Tooth – Fits Jeep CJ5 (1976–1983), CJ7 (1976–1986)

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Brand : Motive Gear
Motive Gear MGK-129 Differential Ring & Pinion fits Dana 30 and AMC 20 axles.
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Motive Gear Differential MGK-129 Ring & Pinion For Dana 30 Standard Front & AMC 20 Rear Gear Ratio 4.56, 10/12-Bolt, 26/28 Spline 9 Pinion & 41 Ring Tooth – Fits Jeep CJ5 (1976–1983), CJ7 (1976–1986)
Motive Gear Differential MGK-129 Ring & Pinion For Dana 30 Standard Front & AMC 20 Rear Gear Ratio 4.56, 10/12-Bolt, 26/28 Spline 9 Pinion & 41 Ring Tooth – Fits Jeep CJ5 (1976–1983), CJ7 (1976–1986)
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Type
Differential Rings & Pinions
Title
Motive Gear Differential MGK-129 Ring & Pinion For Dana 30 Standard Front & AMC 20 Rear Gear Ratio 4.56, 10/12-Bolt, 26/28 Spline 9 Pinion & 41 Ring Tooth – Fits Jeep CJ5 (1976–1983), CJ7 (1976–1986)
Price
$1,178.99 USD
Vendor
Motive Gear
Description
Short Summary: The MGK-129 Differential Ring & Pinion kit by Motive Gear is designed for Jeep CJ5 (1976–1983) and CJ7 (1976–1986) models with Dana 30 Standard front and AMC 20 rear axles.It features a 4.56 gear ratio, precision-machined 8620 steel construction, and premium Timken bearings for reliable performance on and off-road.Key Features Application: Dana 30 Standard Front (10-Bolt Cover) & AMC 20 Rear (12-Bolt Cover) – 4.56 Ratio Gear Specs (Front): 9 Pinion Teeth, 41 Ring Teeth, 1.376" Pinion Shaft Diameter, 26 Spline Gear Specs (Rear): 9 Pinion Teeth, 41 Ring Teeth, 1.625" Pinion Shaft Diameter, 28 Spline Material: 8620 Steel Ring & Pinion Gears Includes: Front & Rear Ring & Pinions, Timken Bearings, Seals, Installation Hardware Warranty: 1-Year or 50,000-Mile Limited Warranty Vehicle Compatibility Jeep CJ5 (1976–1983) CJ7 (1976–1986) Replaces (Competitor part numbers not provided in source data) Warranty & Quality Assurance Backed by a 1-Year or 50,000-Mile Limited Warranty, the MGK-129 kit by Motive Gear is engineered for durability and smooth operation.Its high-quality 8620 steel gears and premium Timken bearings ensure dependable performance for demanding driving conditions.

More about this item : Motive Gear Differential MGK-129 Ring & Pinion For Dana 30 Standard Front & AMC 20 Rear Gear Ratio 4.56, 10/12-Bolt, 26/28 Spline 9 Pinion & 41 Ring Tooth – Fits Jeep CJ5 (1976–1983), CJ7 (1976–1986)

Short Summary: The MGK-129 Differential Ring & Pinion kit by Motive Gear is designed for Jeep CJ5 (1976–1983) and CJ7 (1976–1986) models with Dana 30 Standard front and AMC 20 rear axles.

It features a 4.56 gear ratio, precision-machined 8620 steel construction, and premium Timken bearings for reliable performance on and off-road.

Key Features Application: Dana 30 Standard Front (10-Bolt Cover) & AMC 20 Rear (12-Bolt Cover) – 4.56 Ratio Gear Specs (Front): 9 Pinion Teeth, 41 Ring Teeth, 1.376" Pinion Shaft Diameter, 26 Spline Gear Specs (Rear): 9 Pinion Teeth, 41 Ring Teeth, 1.625" Pinion Shaft Diameter, 28 Spline Material: 8620 Steel Ring & Pinion Gears Includes: Front & Rear Ring & Pinions, Timken Bearings, Seals, Installation Hardware Warranty: 1-Year or 50,000-Mile Limited Warranty Vehicle Compatibility Jeep CJ5 (1976–1983) CJ7 (1976–1986) Replaces (Competitor part numbers not provided in source data) Warranty & Quality Assurance Backed by a 1-Year or 50,000-Mile Limited Warranty, the MGK-129 kit by Motive Gear is engineered for durability and smooth operation.

Its high-quality 8620 steel gears and premium Timken bearings ensure dependable performance for demanding driving conditions.

Motive Gear Differential MGK-129 Ring & Pinion For Dana 30 Standard Front & AMC 20 Rear Gear Ratio 4.56, 10/12-Bolt, 26/28 Spline 9 Pinion & 41 Ring Tooth – Fits Jeep CJ5 (1976–1983), CJ7 (1976–1986)
Key Features
  • Fits Dana 30 Standard Front (10-bolt cover) & AMC 20 Rear (12-bolt cover) differentials with 4.56 ratio; requires 3.73 and higher carrier for front, and 3.08 and higher carrier for rear
  • Gear Ratio: 4.56 with 9 pinion teeth & 41 ring teeth for both front and rear axles, ensuring optimal torque for off-road and heavy-duty use
  • Pinion shaft diameter: 1.376" (front) & 1.625" (rear) with 26 front splines & 28 rear splines for a precise fit and strong torque transfer
  • Manufactured from premium 8620 steel for strength and wear resistance; includes Timken bearing kits for both axles
  • Complete kit with front & rear ring and pinions, Timken bearings, seals, and installation hardware; covered by a 1-Year/50,000-Mile warranty
Technical Specifications
  • Length : 16.0 lb
  • Width : 16.0 lb
  • Height : 12.0 lb
  • Weight : 40.71 lb
Product Identifiers
  • ASIN B07NCHR29D
  • UPC: 698231498163
Shipping Information
  • Ships From : United States
  • Brand : Motive Gear

Frequently Asked Questions About : Motive Gear Differential MGK-129 Ring & Pinion For Dana 30 Standard Front & AMC 20 Rear Gear Ratio 4.56, 10/12-Bolt, 26/28 Spline 9 Pinion & 41 Ring Tooth – Fits Jeep CJ5 (1976–1983), CJ7 (1976–1986)

01 What is the gear ratio of the Motive Gear MGK-129?

The gear ratio is 4.56.

02 Which vehicles are compatible with the MGK-129 kit?

It fits Jeep CJ5 (1976–1983) and CJ7 (1976–1986) models.

03 What material is used for the ring and pinion gears?

The gears are made from 8620 steel.

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