Home / Shop / Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-323 Gear, Pinion, 3.23:1 Ratio, 1.625 in. Pinion, 30 Spline, 8.500 in. Gear, GM 8.5/8.6 in., Set

Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-323 Gear, Pinion, 3.23:1 Ratio, 1.625 in. Pinion, 30 Spline, 8.500 in. Gear, GM 8.5/8.6 in., Set

SKU: YUKGM8.5-323

Ring and Pinion Gears

Yukon Gear & Axle

Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-323 Gear, Pinion, 3.23:1 Ratio, 1.625 in. Pinion, 30 Spline, 8.500 in. Gear, GM 8.5/8.6 in., Set

SKU: YUKGM8.5-323

Ring and Pinion Gears

Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

IMPORTANT NOTICE: Must use 2.73:1 or numerically higher ratio carrier.

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.

Product Overview

Yukon Gear & Axle high performance ring & pinions set the standard for quality. Yukon Engineers use state-of-the art design & testing processes, backed by 2 in-house quality labs to ensure each item manufactured meets exacting specifications & quality standards. Yukon designed gear tooth surface finish reduces both friction & heat for long races & high torque conditions. We use high grade steel in both the ring & pinion, with fitment designed to OEM specs. Go ahead, add loads of horsepower & go big on tires because Yukon offers the widest selection of gear ratios to choose from. You?ll know that your gear choice was the right one, because you chose Yukon. Yukon Ring & Pinions come with a 1 year warranty against manufacture defects. Yukon offers a Y.E.S. Plan for a lifetime, comprehensive, no-questions-asked protection plan covering your gears for as long as you own the vehicle.

Features and Benefits

Fits GM 8.5 in. And 8.6 in.
3.23 ratio
8.50" ring gear diameter
Fits GM 8.5" and 8.6"
10 ring gear bolts
30 spline pinion
8.50 in. Ring Gear Diameter

Product Details

AAP Selling Package Quantity UOM:	EA
AAP_UDA_12:	EA
AAP_UDA_22:	1
Axle Model:	GM 8.5 & GM 8.6
Axle Type:	Semi Float
California Proposition 65:	Not Applicable
Cover Bolt Quantity:	10
Description:	High performance Yukon Ring/Pinion gear set for GM 8.5in./8.6in. in a 3.23 ratio
Differential:	GM 8.6 Rear, 99-08
Gear Ratio:	3.23
Mounting Hardware Included:	No
Part Number:	yukYG GM8.5-323
Pinion Spline Count:	30
Position:	Front or Rear
Ring Gear Bolt Quantity:	10
Ring Gear Outside Diameter:	8.5
Shims Included:	No
Title:	High performance Yukon Ring & Pinion gear set for GM 8.5" & 8.6" in a 3.23 ratio
WARNING CA Proposition 65 Required:	No
WARNING CA Proposition 65:	No

Application Summary

8.5" GM 3.23 R&P ( USE OEM w/abs 4 IMPLA & CAPRICE)(no abs ring)

Part Type

Differential Ring and Pinion

Data: v4.2 - Upd: 2026-10-16 05:11:11

Features

3.23 ratio

Specifications

Product Attributes - Brand: Yukon Gear & Axle
Product Attributes - Manufacturer's Part Number: YG GM8.5-323
Product Attributes - Part Type: Ring and Pinion Gears
Product Attributes - Product Line: Yukon Gear & Axle Ring and Pinion Sets
Product Attributes - UPC: 883584244936
Product Attributes - Differential Case Design Type: GM 8.5/8.6 in.
Product Attributes - Ring and Pinion Ratio: 3.23:1
Product Attributes - Cover Bolts: 10
Product Attributes - Ring Gear Bolts: 10
Product Attributes - Pinion Spline Count: 30
Product Attributes - Ring Gear Rotation: Standard
Product Attributes - Ring Gear Teeth: 42
Product Attributes - Pinion Gear Teeth: 13
Product Attributes - Ring Gear Diameter (in.): 8.500 in.
Product Attributes - Pinion Shaft Diameter (in.): 1.626 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.
Product Attributes - Notes: Must use 2.73:1 or numerically higher ratio carrier.

Reference Information

Brand Name/s	Yukon Gear & Axle
StreetFX SKU	yukGM8.5-323
SFX Item ID	4787743
Supplier Item Code	4787743
Manufacturer SKU	GM8.5-323
Manufacturer UPC	883584244936
Alternative References	YGA-24493

Compatibility

Application Data

Make	BUICK
Model	APOLLO
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 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	D

Make	BUICK
Model	APOLLO
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 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	D

Make	BUICK
Model	APOLLO
Submodel	BASE
Beginning Year	1973
Ending Year	1974
Engine Type	V8
Engine Size	5.7L/350
Engine Family	Buick V8
Axle Location	Rear
Liter	5.7
CID	350
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	H

Make	BUICK
Model	APOLLO
Submodel	BASE
Beginning Year	1973
Ending Year	1974
Engine Type	V8
Engine Size	5.7L/350
Engine Family	Buick V8
Axle Location	Rear
Liter	5.7
CID	350
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	J

Make	BUICK
Model	APOLLO
Submodel	BASE
Beginning Year	1975
Ending Year	1975
Engine Type	L6
Engine Size	4.1L/250
Engine Family	GM inline 6-cylinder
Axle Location	Rear
Liter	4.1
CID	250
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	D

Make	BUICK
Model	APOLLO
Submodel	BASE
Beginning Year	1975
Ending Year	1975
Engine Type	V8
Engine Size	4.3L/260
Engine Family	Oldsmobile V8
Axle Location	Rear
Liter	4.3
CID	260
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	F

Make	BUICK
Model	APOLLO
Submodel	BASE
Beginning Year	1975
Ending Year	1975
Engine Type	V8
Engine Size	5.7L/350
Engine Family	Oldsmobile V8
Axle Location	Rear
Liter	5.7
CID	350
CC	5733
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	H

Make	BUICK
Model	APOLLO
Submodel	BASE
Beginning Year	1975
Ending Year	1975
Engine Type	V8
Engine Size	5.7L/350
Engine Family	Oldsmobile V8
Axle Location	Rear
Liter	5.7
CID	350
CC	5733
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	J

Make	BUICK
Model	APOLLO
Submodel	SR
Beginning Year	1975
Ending Year	1975
Engine Type	L6
Engine Size	4.1L/250
Engine Family	GM inline 6-cylinder
Axle Location	Rear
Liter	4.1
CID	250
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	D

Make	BUICK
Model	APOLLO
Submodel	SR
Beginning Year	1975
Ending Year	1975
Engine Type	V8
Engine Size	4.3L/260
Engine Family	Oldsmobile V8
Axle Location	Rear
Liter	4.3
CID	260
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	F

Make	BUICK
Model	APOLLO
Submodel	SR
Beginning Year	1975
Ending Year	1975
Engine Type	V8
Engine Size	5.7L/350
Engine Family	Oldsmobile V8
Axle Location	Rear
Liter	5.7
CID	350
CC	5733
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	H

Make	BUICK
Model	APOLLO
Submodel	SR
Beginning Year	1975
Ending Year	1975
Engine Type	V8
Engine Size	5.7L/350
Engine Family	Oldsmobile V8
Axle Location	Rear
Liter	5.7
CID	350
CC	5733
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	J

Make	BUICK
Model	ELECTRA
Submodel	225
Beginning Year	1971
Ending Year	1971
Engine Type	V8
Engine Size	7.5L/455
Engine Family	Buick V8
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio

Make	BUICK
Model	ELECTRA
Submodel	225
Beginning Year	1971
Ending Year	1971
Engine Type	V8
Engine Size	7.5L/455
Engine Family	Buick V8
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio

Make	BUICK
Model	ELECTRA
Submodel	225
Beginning Year	1971
Ending Year	1971
Engine Type	V8
Engine Size	7.5L/455
Engine Family	Buick V8
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio

Make	BUICK
Model	ELECTRA
Submodel	225
Beginning Year	1971
Ending Year	1974
Engine Type	V8
Engine Size	7.5L/455
Engine Family	Buick V8
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	U

Make	BUICK
Model	ELECTRA
Submodel	225
Beginning Year	1972
Ending Year	1974
Engine Type	V8
Engine Size	7.5L/455
Engine Family	Buick V8
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	T

Make	BUICK
Model	ELECTRA
Submodel	225
Beginning Year	1972
Ending Year	1974
Engine Type	V8
Engine Size	7.5L/455
Engine Family	Buick V8
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	V

Make	BUICK
Model	ELECTRA
Submodel	225
Beginning Year	1972
Ending Year	1974
Engine Type	V8
Engine Size	7.5L/455
Engine Family	Buick V8
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	W

Make	BUICK
Model	ELECTRA
Submodel	225
Beginning Year	1976
Ending Year	1976
Engine Type	V8
Engine Size	5.7L/350
Engine Family	Buick V8
Axle Location	Rear
Liter	5.7
CID	350
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	X

Make	BUICK
Model	ELECTRA
Submodel	225
Beginning Year	1976
Ending Year	1976
Engine Type	V8
Engine Size	7.5L/455
Engine Family	Oldsmobile V8
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	T

Make	BUICK
Model	ELECTRA
Submodel	225
Beginning Year	1977
Ending Year	1977
Engine Type	V8
Engine Size	5.7L/350
Engine Family	Oldsmobile V8
Axle Location	Rear
Liter	5.7
CID	350
CC	5733
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	H

Make	BUICK
Model	ELECTRA
Submodel	225
Beginning Year	1977
Ending Year	1977
Engine Type	V8
Engine Size	5.7L/350
Engine Family	Oldsmobile V8
Axle Location	Rear
Liter	5.7
CID	350
CC	5733
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	J

Make	BUICK
Model	ELECTRA
Submodel	225
Beginning Year	1977
Ending Year	1979
Engine Type	V8
Engine Size	5.7L/350
Engine Family	Oldsmobile V8
Axle Location	Rear
Liter	5.7
CID	350
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	R

Make	BUICK
Model	ELECTRA
Submodel	225
Beginning Year	1977
Ending Year	1979
Engine Type	V8
Engine Size	6.6L/403
Engine Family	Oldsmobile V8
Axle Location	Rear
Liter	6.6
CID	403
Application Notes	GM 8.5 & 8.6 in.; 10 Bolt; Ring and Pinion Set; 3.23 Ratio
Engine VIN Code	K