Home / Shop / Yukon Gear & Axle Ring and Pinion Sets YG GM12T-456 Gears, 4.56:1 Ratio, 30-spline, Standard Rotation, GM 8.875 in. Truck, Set

Yukon Gear & Axle Ring and Pinion Sets YG GM12T-456 Gears, 4.56:1 Ratio, 30-spline, Standard Rotation, GM 8.875 in. Truck, Set

SKU: YUKGM12T-456

Ring and Pinion Gears

Yukon Gear & Axle

Yukon Gear & Axle Ring and Pinion Sets YG GM12T-456 Gears, 4.56:1 Ratio, 30-spline, Standard Rotation, GM 8.875 in. Truck, Set

SKU: YUKGM12T-456

Ring and Pinion Gears

IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.

We accept

Description

Yukon Gear & Axle ring and pinion sets are strong but quiet performers. Designed to handle some of the harshest conditions, these sets utilize the latest design and manufacturing technologies to afford you a smooth running gear that's durable and easy to set up. Yukon ring and pinions are available in hundreds of size, ratio, and axle model options. Whether you're on the street, off-road, or at the track, you'll experience unrivaled power and gear performance. Order the model recommended for your application.

Part Type

Ring and Pinion Gears

Data: v4.2 - Upd: 2026-10-16 05:13:15

Specifications

Product Attributes - Brand: Yukon Gear & Axle
Product Attributes - Manufacturer's Part Number: YG GM12T-456
Product Attributes - Part Type: Ring and Pinion Gears
Product Attributes - Product Line: Yukon Gear & Axle Ring and Pinion Sets
Product Attributes - UPC: 883584241324
Product Attributes - Differential Case Design Type: GM 8.875 in. (12-bolt), truck
Product Attributes - Ring and Pinion Ratio: 4.56:1
Product Attributes - Cover Bolts: 12
Product Attributes - Ring Gear Bolts: 12
Product Attributes - Pinion Spline Count: 30
Product Attributes - Carrier Series: 4
Product Attributes - Ring Gear Rotation: Standard
Product Attributes - Ring Gear Teeth: 41
Product Attributes - Pinion Gear Teeth: 9
Product Attributes - Ring Gear Diameter (in.): 8.875 in.
Product Attributes - Pinion Shaft Diameter (in.): 1.438 in.
Product Attributes - Installation Kit Included: No
Product Attributes - Cover Gasket Included: No
Product Attributes - Pinion Shims Included: No
Product Attributes - Carrier Shims Included: No
Product Attributes - Crush Sleeve Included: No
Product Attributes - Pinion Seal Included: No
Product Attributes - Pinion Nut Included: No
Product Attributes - Ring Gear Bolts Included: No
Product Attributes - Head Bearing Included: No
Product Attributes - Tail Bearing Included: No
Product Attributes - Carrier Bearings Included: No
Product Attributes - Axle Seals Included: No
Product Attributes - Axle Bearings Included: No
Product Attributes - Differential Cover Included: No
Product Attributes - Differential Oil Included: No
Product Attributes - Friction Modifier Included: No
Product Attributes - Installation DVD Included: No
Product Attributes - Quantity: Sold as a set.

Reference Information

Brand Name/s	Yukon Gear & Axle
StreetFX SKU	yukGM12T-456
SFX Item ID	4786148
Supplier Item Code	4786148
Manufacturer SKU	GM12T-456
Manufacturer UPC	883584241324
Alternative References	YGA-24132, 30-spline

Compatibility

Application Data

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1969
Ending Year	1969
Engine Type	L6
Engine Size	4.1L/250
Engine Family	GM inline 6-cylinder
Axle Location	Rear
Liter	4.1
CID	250
CC	4097
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	P

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1969
Ending Year	1969
Engine Type	V8
Engine Size	5.0L/307
Engine Family	Chevy small block Gen I
Axle Location	Rear
Liter	5.0
CID	307
CC	5031
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	E

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1969
Ending Year	1969
Engine Type	V8
Engine Size	5.0L/307
Engine Family	Chevy small block Gen I
Axle Location	Rear
Liter	5.0
CID	307
CC	5031
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	U

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1969
Ending Year	1971
Engine Type	L6
Engine Size	4.8L/292
Engine Family	GM inline 6-cylinder
Axle Location	Rear
Liter	4.8
CID	292
CC	4801
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1969
Ending Year	1972
Engine Type	L6
Engine Size	4.8L/292
Engine Family	GM inline 6-cylinder
Axle Location	Rear
Liter	4.8
CID	292
CC	4801
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	S

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1969
Ending Year	1972
Engine Type	V8
Engine Size	5.7L/350
Engine Family	Chevy small block Gen I
Axle Location	Rear
Liter	5.7
CID	350
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	E

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1970
Ending Year	1970
Engine Type	V8
Engine Size	5.0L/307
Engine Family	Chevy small block Gen I
Axle Location	Rear
Liter	5.0
CID	307
CC	5031
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	A

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1970
Ending Year	1970
Engine Type	V8
Engine Size	5.0L/307
Engine Family	Chevy small block Gen I
Axle Location	Rear
Liter	5.0
CID	307
CC	5031
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	B

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1970
Ending Year	1971
Engine Type	L6
Engine Size	4.1L/250
Engine Family	GM inline 6-cylinder
Axle Location	Rear
Liter	4.1
CID	250
CC	4097
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	N

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1970
Ending Year	1971
Engine Type	L6
Engine Size	4.1L/250
Engine Family	GM inline 6-cylinder
Axle Location	Rear
Liter	4.1
CID	250
CC	4097
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	S

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1971
Ending Year	1971
Engine Type	L6
Engine Size	4.1L/250
Engine Family	GM inline 6-cylinder
Axle Location	Rear
Liter	4.1
CID	250
CC	4097
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	C

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1971
Ending Year	1971
Engine Type	L6
Engine Size	4.1L/250
Engine Family	GM inline 6-cylinder
Axle Location	Rear
Liter	4.1
CID	250
CC	4097
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	L

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1971
Ending Year	1971
Engine Type	V8
Engine Size	5.0L/307
Engine Family	Chevy small block Gen I
Axle Location	Rear
Liter	5.0
CID	307
CC	5031
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	H

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1971
Ending Year	1971
Engine Type	V8
Engine Size	5.0L/307
Engine Family	Chevy small block Gen I
Axle Location	Rear
Liter	5.0
CID	307
CC	5031
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	P

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1972
Ending Year	1972
Engine Type	L6
Engine Size	4.1L/250
Engine Family	GM inline 6-cylinder
Axle Location	Rear
Liter	4.1
CID	250
CC	4097
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	D

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1972
Ending Year	1972
Engine Type	L6
Engine Size	4.1L/250
Engine Family	GM inline 6-cylinder
Axle Location	Rear
Liter	4.1
CID	250
CC	4098
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	D

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1972
Ending Year	1972
Engine Type	V8
Engine Size	5.0L/307
Engine Family	Chevy small block Gen I
Axle Location	Rear
Liter	5.0
CID	307
CC	5031
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	F

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1972
Ending Year	1974
Engine Type	L6
Engine Size	4.8L/292
Engine Family	GM inline 6-cylinder
Axle Location	Rear
Liter	4.8
CID	292
CC	4801
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	T

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1973
Ending Year	1973
Engine Type	L6
Engine Size	4.8L/292
Engine Family	GM inline 6-cylinder
Axle Location	Rear
Liter	4.8
CID	292
CC	4786
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	T

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1973
Ending Year	1973
Engine Type	V8
Engine Size	5.0L/307
Engine Family	Chevy small block Gen I
Axle Location	Rear
Liter	5.0
CID	307
CC	5031
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	X

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1973
Ending Year	1973
Engine Type	V8
Engine Size	7.4L/454
Engine Family	Chevy big block Mark IV
Axle Location	Rear
Liter	7.4
CID	454
CC	7441
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	Z

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1973
Ending Year	1974
Engine Type	L6
Engine Size	4.1L/250
Engine Family	GM inline 6-cylinder
Axle Location	Rear
Liter	4.1
CID	250
CC	4097
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	Q

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1973
Ending Year	1974
Engine Type	L6
Engine Size	4.1L/250
Engine Family	GM inline 6-cylinder
Axle Location	Rear
Liter	4.1
CID	250
CC	4098
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	Q

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1973
Ending Year	1974
Engine Type	V8
Engine Size	5.7L/350
Engine Family	Chevy small block Gen I
Axle Location	Rear
Liter	5.7
CID	350
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	V

Make	CHEVROLET
Model	BLAZER
Submodel	BASE
Beginning Year	1973
Ending Year	1974
Engine Type	V8
Engine Size	5.7L/350
Engine Family	Chevy small block Gen I
Axle Location	Rear
Liter	5.7
CID	350
Application Notes	GM 12 Bolt Truck; Ring and Pinion Set; 4.56 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code	Y

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Yukon Gear & Axle Ring and Pinion Sets YG GM12T-456 Gears, 4.56:1 Ratio, 30-spline, Standard Rotation, GM 8.875 in. Truck, Set

Yukon Gear & Axle Ring and Pinion Sets YG GM12T-456 Gears, 4.56:1 Ratio, 30-spline, Standard Rotation, GM 8.875 in. Truck, Set

Description

Part Type

Specifications

Reference Information

Compatibility

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