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G2 Dana 30/35 YJ 4.56 Ring and Pinion Minor Installation Kit - 4-YJ-456M

G2 Dana 30/35 YJ 4.56 Ring and Pinion Minor Installation Kit – 4-YJ-456M

G2 Axle and Gear
  • Fits the 1987–1995 Jeep Wrangler YJ, per the product description
  • 4.56 ring and pinion gear sets, front and rear
  • Dana 30 front and Dana 35 rear axles
  • Includes matched front and rear minor installation kits
  • Limited lifetime warranty

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Description

Overview

The G2 Axle and Gear 4-YJ-456M is a 4.56 ring and pinion gear set with front and rear minor installation kits for the 1987–1995 Jeep Wrangler YJ. The kit pairs a 4.56 front gear set for the Dana 30 front axle with a 4.56 rear gear set for the Dana 35 rear axle, so both axles of the Jeep are regeared in one kit.

For the 4-YJ-456M, G2 describes its complete ring and pinion kits as including everything needed for a gear swap: front and rear gear sets plus the minor installation kits for both axles. The 4-YJ-456M gives Wrangler YJ owners a 4.56 option for changing axle gearing, and G2 says its gears are engineered for oversized tires and high performance engines.

Key features

  • Complete front and rear set: 4.56 ring and pinion gear sets for both axles plus matched minor installation kits
  • Built for the Dana 30 front axle and the Dana 35 rear axle
  • Computer heat treated 8620 steel gears
  • Manufactured to O.E. specs, according to G2
  • Double shot peened and double lapped gear sets
  • Limited lifetime warranty listed by G2

Specifications

Brand G2 Axle and Gear
Part number 4-YJ-456M
UPC 631410141276
Product type Ring and pinion gear sets with front and rear minor installation kits
Gear ratio 4.56
Vehicle named in listing 1987–1995 Jeep Wrangler YJ
Front axle Dana 30
Rear axle Dana 35
Axle location Front and rear
Kit type Minor kit
Gear material Computer heat treated 8620 steel
Finishing Double shot peened, double lapped
Manufacturing Manufactured to O.E. specs
Warranty Limited lifetime warranty

Vehicle fitment

G2’s product description lists the 4-YJ-456M for the 1987–1995 Jeep Wrangler YJ (87-95 Wrangler YJ). The fitment for the 4-YJ-456M is based on the product description. The listing also specifies a Dana 30 front axle and a Dana 35 rear axle, so the 4-YJ-456M applies to a Jeep that has those axles.

The 4-YJ-456M listing does not cover the Wrangler TJ (1997–2006), the Wrangler JK (2007–2018) and other Jeep models. Confirm your vehicle’s year, model and trim before ordering.

Installation notes

Fitting the 4-YJ-456M changes the gear ratio on both axles of a Wrangler YJ, which is work for an experienced gear installer. The two minor installation kits in the 4-YJ-456M are the parts used for setting the new gears, and the same 4.56 ratio goes in both axles so the drivetrain stays matched. The 4-YJ-456M is a minor kit, and bearing sets are not among its listed contents. Plan a careful break-in for the new 4-YJ-456M gears after installation.

What’s included

  • Front ring and pinion gear set, 4.56
  • Rear ring and pinion gear set, 4.56
  • Front minor installation kit
  • Rear minor installation kit
SKU: G/24-YJ-456M Category:

Specification

Shipping weight 28.00 lbs
Package dimensions 0.00 × 0.00 × 0.00 in
brands

Fitment

VehicleYearsTrims
Jeep Wrangler (YJ) likely fits1987–1995All

Vehicles marked "likely fits" are inferred from the product description rather than a manufacturer fitment list. Please confirm fitment with the manufacturer before ordering.

Use “Select your vehicle” at the top of the page to check this part against your vehicle.

Questions & Answers

Which vehicles does the G2 4-YJ-456M fit?

The G2 4-YJ-456M is listed for the 1987–1995 Jeep Wrangler YJ. Fitment comes from the product description, which names the Wrangler YJ for 1987–1995. Confirm your Jeep's axles match the Dana 30 front and Dana 35 rear before choosing the 4-YJ-456M.

What gear ratio is the G2 4-YJ-456M?

The 4-YJ-456M is a 4.56 ratio kit. Both ring and pinion sets in the 4-YJ-456M, front and rear, are 4.56, so the two axles stay matched after the gear swap.

Does the 4-YJ-456M include both front and rear gears?

Yes. G2 states the 4-YJ-456M includes front and rear gear sets plus matched minor installation kits for both axles, which makes it a complete gear swap package for the two axles.

Which axles is the 4-YJ-456M made for?

The 4-YJ-456M is made for a Dana 30 front axle and a Dana 35 rear axle on the Wrangler YJ. The 4-YJ-456M is not a kit for other axle combinations, so check your Jeep's axles first.

What materials and finishing are used on the 4-YJ-456M gears?

G2 lists computer heat treated 8620 steel, double shot peening and double lapping for the 4-YJ-456M, and says the gears are manufactured to O.E. specs. G2 also lists a limited lifetime warranty on the 4-YJ-456M.

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