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Yukon Gear & Axle Yukon Gear Ring and Pinion Gear Set for GM 12P Differential 3.42 Ratio
$396.89

Upgrade Your Ride with the Yukon Gear & Axle YG GM12P-342

If you're looking to enhance the performance of your classic GM ride, the Yukon Gear & Axle YG GM12P-342 is the perfect upgrade for you. This high-performance ring and pinion gear set is engineered to deliver exceptional quality and reliability, making it a top choice for automotive enthusiasts who value performance and durability.

Why Choose Yukon Gear & Axle?

Yukon Gear & Axle has set the standard in the automotive gear industry with their innovative designs and advanced manufacturing techniques. Each gear set undergoes rigorous quality testing and heat treatment processes, ensuring that the structure and surface finish meet the highest specifications. Plus, with the Y.E.S. Plan, you can enjoy lifetime protection for your gear set, giving you peace of mind for as long as you own your vehicle.

Key Features

  • Designed for GM 12 bolt passenger cars
  • 8.875" ring gear diameter for robust performance
  • 30 spline pinion for enhanced strength
  • 12 ring gear bolts for secure installation
  • 3.42 gear ratio, perfect for balancing power and efficiency

Specifications

  • Cover Bolt Quantity: 12
  • Gear Ratio: 3.42
  • Mounting Hardware Included: No

Fitment

The YG GM12P-342 is compatible with a range of classic GM models, making it a versatile choice for your build:

  • Buick Wildcat (1964-1970)
  • Chevrolet Bel Air (1964-1972)
  • Chevrolet Biscayne (1964-1972)
  • Chevrolet Camaro (1967-1972)
  • Chevrolet Caprice (1966-1970)
  • Chevrolet Chevelle (1964-1973)
  • Chevrolet Chevy II (1964-1968)
  • Chevrolet El Camino (1965-1972)
  • Chevrolet Impala (1964-1972)
  • Chevrolet Monte Carlo (1970-1972)
  • Chevrolet Nova (1969-1972)
  • Pontiac Firebird (1969-1972)
  • Pontiac GTO (1970-1972)

Real Customer Feedback

Owners of classic Chevys and Pontiacs have praised the YG GM12P-342 for its seamless fit and performance. One Chevrolet Camaro 1970 owner shared, “I installed the Yukon gear set last month, and it transformed my ride. The acceleration is noticeably quicker, and it handles beautifully with my upgraded tires.”

Whether you're adding horsepower or simply seeking to improve traction, the Yukon Gear & Axle YG GM12P-342 is a smart choice for any classic GM vehicle owner. Don't miss out on the chance to elevate your driving experience!

Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
1964-1970
Buick Wildcat
1964-1972
Chevrolet Bel Air
1964-1972
Chevrolet Biscayne
1967-1972
Chevrolet Camaro
1966-1970
Chevrolet Caprice
1964-1973
Chevrolet Chevelle
1964-1968
Chevrolet Chevy II
1965-1972
Chevrolet El Camino
1964-1972
Chevrolet Impala
1970-1972
Chevrolet Monte Carlo
1969-1972
Chevrolet Nova
1969-1972
Pontiac Firebird
1970-1972
Pontiac GTO
Yukon's mission is to build quality parts that exceed your expectations. We achieve this through state-of-the-art product design and an in-house engineering team. Our parts are then produced by leaders in OEM manufacturing and endure rigorous testing.
Yukon Gear & Axle ("Yukon") warrants the original retail purchaser that all Yukon products will be free from defects in materials and workmanship for the periods shown herein. Yukon makes no other warranty of any kind, express or implied. All other warranties, including but not limited to an implied warranty of merchantability or fitness for a particular purpose, are excluded. This warranty is offered provided that the Yukon product has been installed and maintained in accordance with Yukon instructions, and that it has not been subject to modification, accident, abnormal use or misuse. At Yukon's discretion, this warranty may be voided if installation of Yukon product(s) occurs on vehicles with tires that exceed Yukon Maximum Recommended Tire Size.

Upon notification of a warranty claim, Yukon shall investigate the claim of defect, and, in the event of a verified defect, shall, at their sole choice, either repair the defective product, replace it, or refund the purchase price.

This warranty does not cover, and Yukon shall not be liable for, incidental or consequential damages, including loss of time, road service charges, labor charges, inconvenience, loss of vehicle use, loss of revenues, or loss or damage to personal property (including loss or damage to vehicle parts due to the failure of the Yukon product)*. In addition, this warranty does not cover, and Yukon shall not be liable for, any undertaking, representation, or agreements made by dealers or other third parties selling Yukon Gear & Axle products, except where such agreements are within the provisions of this Warranty statement. Also, this warranty does not cover damage to the axle caused by or facilitated by failure of a non-Yukon component.

This agreement offers you specific legal rights. You may also have other rights which vary from state to state.

YUKON WARRANTY BY PRODUCT

Spool
  • Length:As long as original purchaser owns vehicle in which Spool is originally installed
  • Notes:It is normal for Spools to cause tire chatter, squeal, or scrubbing when vehicle is not moving in a straight line. Both rear tires must measure the same height from ground to top of wheel for Spool to function properly without premature wear.
Super Joint
  • Length:As long as original purchaser owns vehicle in which Super Joint is originally installed
  • Notes:Warranty coverage is for breakage of cross section or caps only. Failure by wear or galling is not covered.
YP - Series Products (other than Spool and Super Joint)
  • Length:One (1) Year
  • Notes:Covers parts for one year against manufacturers defects.
Front Axle (1541H)
  • Length:Ten (10) Years
  • Notes:Covers parts for ten years against manufacturing defects.
Rear Axle (1541H)
  • Length:Ten (10) Years
  • Notes:Covers parts for ten years against manufacturing defects.
Rear Axle 4340 (YA W)
  • Length:Limited Lifetime
  • Notes:Limited Lifetime warranty covering manufacturing defects and axle breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace axle or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations.
Front Axle (Series YA W)
  • Length:Limited Lifetime
  • Notes:Limited Lifetime warranty covering manufacturing defects and axle breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace axle or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations.
Ring & Pinion Gear Set
  • Length:One (1) Year
  • Notes:Warrantied against manufacturing defects for one (1) year.
Positraction Differential
  • Length:One (1) Year
  • Notes:Exclusions apply, does not cover premature clutch wear or abuse. It is normal for Positraction differentials to cause tire chatter, squeal, or scrubbing when vehicle is not moving in a straight line. Both rear tires must measure the same height from ground to top of wheel for differential to function properly without premature wear. Limited slip additive or appropriate friction modifier must be used with oil to reduce Positraction chatter.
Zip Locker (YZL)
  • Length:Six (6) Years
  • Notes:All Zip Lockers come with a six (6) year warranty against manufacturer defect, including any collaterally damaged parts and associated labor, up to $2,000*, for the first two (2) years. Collaterally damaged parts must be submitted for inspection. Receipts for parts and associated labor must be submitted as well. Only claims deemed reasonable by Yukon Gear & Axle will be accepted. Offer may be discontinued without advance notice.
Grizzly Locker (YGL)
  • Length:One (1) Year
  • Notes:Covers the replacement of the unit and any collaterally damaged parts and associated labor, up to $2,000. Collaterally damaged parts must be submitted for inspection. Receipts for parts and associated labor must be submitted as well. Only claims deemed reasonable by Yukon Gear & Axle will be accepted. Offer may be discontinued without advance notice.
Yokes
  • Length:One (1) Year
  • Notes:Covers parts for one year against manufacturing defects.
Carriers (YC)
  • Length:One (1) Year
  • Notes:Covers parts for one year against manufacturing defects.
Tools (YT)
  • Length:One (1) Year
  • Notes:Covers parts for one year against manufacturing defects.
Install Kits
  • Length:One (1) Year
  • Notes:Includes BK, MK, PK, and YK. Covers parts for one year against manufacturing defects.
Spider Gear Kits (YPK)
  • Length:One (1) Year
  • Notes:One year against manufacturing defects. Exclusions apply, does not cover clutch wear in limited slip differentials.
YHC Drive Flanges
  • Length:Limited Lifetime
  • Notes:Limited Lifetime warranty covering manufacturing defects and breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace the part or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations.
Yukon Hardcore Locking Hubs
  • Length:Limited Lifetime
  • Notes:Limited Lifetime warranty covering manufacturing defects and breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however, Yukon reserves the right to either replace the part or refund original purchase price after the first warranty claim. Yukon (through RANDYS Worldwide Automotive) makes final determination on warranty considerations
Driveshafts
  • Length:One (1) Year
  • Notes:Warrantied against manufacturing defects for one (1) year. Longer warranty is available through purchase of a Y.E.S. plan.

Installation Instructions

Click to view the Installation Instructions here

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