Home / Shop / Richmond Gear Ring and Pinion Sets 49-0278-1 GM 8.5/8.6 in. 3.42 Gears Gear, Pinion, 3.42:1 Ratio, GM, in., 10-Bolt, 3 Series, Set

Richmond Gear Ring and Pinion Sets 49-0278-1 GM 8.5/8.6 in. 3.42 Gears Gear, Pinion, 3.42:1 Ratio, GM, in., 10-Bolt, 3 Series, Set

SKU: RMG4902781

Ring and Pinion Gears

Richmond Gear

Richmond Gear Ring and Pinion Sets 49-0278-1 GM 8.5/8.6 in. 3.42 Gears Gear, Pinion, 3.42:1 Ratio, GM, in., 10-Bolt, 3 Series, Set

SKU: RMG4902781

Ring and Pinion Gears

Sale ends in Calculating... Fri 16 Oct, 1:59 pm AEST

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.

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Description

Richmond Gear is the leading manufacturer of professional-quality, high performance ring and pinion sets. The superior quality of these gear sets is the result of years of racing development, outstanding design, and state-of-the-art manufacturing methods. Richmond also offers these gear sets in a lightened version for the weight-conscious enthusiast. Their lightened ring and pinion sets feature an outstanding rotating weight loss of up to 6 lbs., ground pinion threads for trouble-free installation, and a special heat treatment for improved strength.

Part Type

3.42 8.5in 10 Bolt GM

Data: v4.2 - Upd: 2026-10-15 12:18:11

Specifications

Product Attributes - Brand: Richmond Gear
Product Attributes - Manufacturer's Part Number: 49-0278-1
Product Attributes - Part Type: Ring and Pinion Gears
Product Attributes - Product Line: Richmond Gear Ring and Pinion Sets
Product Attributes - UPC: 698231705674
Product Attributes - Differential Case Design Type: GM 8.5/8.6 in.
Product Attributes - Ring and Pinion Ratio: 3.42:1
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: 41
Product Attributes - Pinion Gear Teeth: 12
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 - Special Attention: Will not work with factory ABS reluctor ring. Must use 2.73:1 or numerically higher ratio carrier.

Reference Information

Brand Name/s	Richmond Gear
StreetFX SKU	rmg4902781
SFX Item ID	5500882
Supplier Item Code	5500882
Manufacturer SKU	4902781
Manufacturer UPC	698231705674
Alternative References	RIC49-0278-1, 10-Bolt

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	CHEVROLET L6 GAS
Axle Location	Rear
Liter	4.1
CID	250
CC	4097
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	D
Region	USA

Make	BUICK
Model	APOLLO
Submodel	BASE
Beginning Year	1973
Ending Year	1974
Engine Type	L6
Engine Size	4.1L/250
Engine Family	CHEVROLET L6 GAS
Axle Location	Rear
Liter	4.1
CID	250
CC	4098
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	D
Region	USA

Make	BUICK
Model	APOLLO
Submodel	BASE
Beginning Year	1973
Ending Year	1974
Engine Type	V8
Engine Size	5.7L/350
Engine Family	BUICK V8 GAS
Axle Location	Rear
Liter	5.7
CID	350
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	H
Region	USA

Make	BUICK
Model	APOLLO
Submodel	BASE
Beginning Year	1973
Ending Year	1974
Engine Type	V8
Engine Size	5.7L/350
Engine Family	BUICK V8 GAS
Axle Location	Rear
Liter	5.7
CID	350
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	J
Region	USA

Make	BUICK
Model	APOLLO
Submodel	BASE
Beginning Year	1975
Ending Year	1975
Engine Type	L6
Engine Size	4.1L/250
Engine Family	CHEVROLET L6 GAS
Axle Location	Rear
Liter	4.1
CID	250
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	D
Region	USA

Make	BUICK
Model	APOLLO
Submodel	BASE
Beginning Year	1975
Ending Year	1975
Engine Type	V8
Engine Size	4.3L/260
Engine Family	OLDSMOBILE V8 GAS
Axle Location	Rear
Liter	4.3
CID	260
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	F
Region	USA

Make	BUICK
Model	APOLLO
Submodel	BASE
Beginning Year	1975
Ending Year	1975
Engine Type	V8
Engine Size	5.7L/350
Engine Family	OLDSMOBILE V8 GAS
Axle Location	Rear
Liter	5.7
CID	350
CC	5733
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	H
Region	USA

Make	BUICK
Model	APOLLO
Submodel	BASE
Beginning Year	1975
Ending Year	1975
Engine Type	V8
Engine Size	5.7L/350
Engine Family	OLDSMOBILE V8 GAS
Axle Location	Rear
Liter	5.7
CID	350
CC	5733
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	J
Region	USA

Make	BUICK
Model	APOLLO
Submodel	SR
Beginning Year	1975
Ending Year	1975
Engine Type	L6
Engine Size	4.1L/250
Engine Family	CHEVROLET L6 GAS
Axle Location	Rear
Liter	4.1
CID	250
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	D
Region	USA

Make	BUICK
Model	APOLLO
Submodel	SR
Beginning Year	1975
Ending Year	1975
Engine Type	V8
Engine Size	4.3L/260
Engine Family	OLDSMOBILE V8 GAS
Axle Location	Rear
Liter	4.3
CID	260
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	F
Region	USA

Make	BUICK
Model	APOLLO
Submodel	SR
Beginning Year	1975
Ending Year	1975
Engine Type	V8
Engine Size	5.7L/350
Engine Family	OLDSMOBILE V8 GAS
Axle Location	Rear
Liter	5.7
CID	350
CC	5733
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	H
Region	USA

Make	BUICK
Model	APOLLO
Submodel	SR
Beginning Year	1975
Ending Year	1975
Engine Type	V8
Engine Size	5.7L/350
Engine Family	OLDSMOBILE V8 GAS
Axle Location	Rear
Liter	5.7
CID	350
CC	5733
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	J
Region	USA

Make	BUICK
Model	CENTURION
Submodel	BASE
Beginning Year	1971
Ending Year	1971
Engine Type	V8
Engine Size	7.5L/455
Engine Family	BUICK V8 GAS
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Region	USA

Make	BUICK
Model	CENTURION
Submodel	BASE
Beginning Year	1971
Ending Year	1971
Engine Type	V8
Engine Size	7.5L/455
Engine Family	BUICK V8 GAS
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Region	USA

Make	BUICK
Model	CENTURION
Submodel	BASE
Beginning Year	1971
Ending Year	1971
Engine Type	V8
Engine Size	7.5L/455
Engine Family	BUICK V8 GAS
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Region	USA

Make	BUICK
Model	CENTURION
Submodel	BASE
Beginning Year	1971
Ending Year	1973
Engine Type	V8
Engine Size	7.5L/455
Engine Family	BUICK V8 GAS
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	U
Region	USA

Make	BUICK
Model	CENTURION
Submodel	BASE
Beginning Year	1972
Ending Year	1973
Engine Type	V8
Engine Size	7.5L/455
Engine Family	BUICK V8 GAS
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	T
Region	USA

Make	BUICK
Model	CENTURION
Submodel	BASE
Beginning Year	1972
Ending Year	1973
Engine Type	V8
Engine Size	7.5L/455
Engine Family	BUICK V8 GAS
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	V
Region	USA

Make	BUICK
Model	CENTURION
Submodel	BASE
Beginning Year	1972
Ending Year	1973
Engine Type	V8
Engine Size	7.5L/455
Engine Family	BUICK V8 GAS
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	W
Region	USA

Make	BUICK
Model	CENTURION
Submodel	BASE
Beginning Year	1973
Ending Year	1973
Engine Type	V8
Engine Size	5.7L/350
Engine Family	BUICK V8 GAS
Axle Location	Rear
Liter	5.7
CID	350
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	H
Region	USA

Make	BUICK
Model	CENTURION
Submodel	BASE
Beginning Year	1973
Ending Year	1973
Engine Type	V8
Engine Size	5.7L/350
Engine Family	BUICK V8 GAS
Axle Location	Rear
Liter	5.7
CID	350
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	J
Region	USA

Make	BUICK
Model	CENTURY
Submodel	BASE
Beginning Year	1973
Ending Year	1974
Engine Type	V8
Engine Size	5.7L/350
Engine Family	BUICK V8 GAS
Axle Location	Rear
Liter	5.7
CID	350
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	H
Region	USA

Make	BUICK
Model	CENTURY
Submodel	BASE
Beginning Year	1973
Ending Year	1974
Engine Type	V8
Engine Size	5.7L/350
Engine Family	BUICK V8 GAS
Axle Location	Rear
Liter	5.7
CID	350
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	J
Region	USA

Make	BUICK
Model	CENTURY
Submodel	BASE
Beginning Year	1973
Ending Year	1974
Engine Type	V8
Engine Size	7.5L/455
Engine Family	BUICK V8 GAS
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	T
Region	USA

Make	BUICK
Model	CENTURY
Submodel	BASE
Beginning Year	1973
Ending Year	1974
Engine Type	V8
Engine Size	7.5L/455
Engine Family	BUICK V8 GAS
Axle Location	Rear
Liter	7.5
CID	455
CC	7456
Application Notes	Differential Ring and Pinion; For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Engine VIN Code	U
Region	USA

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Richmond Gear Ring and Pinion Sets 49-0278-1 GM 8.5/8.6 in. 3.42 Gears Gear, Pinion, 3.42:1 Ratio, GM, in., 10-Bolt, 3 Series, Set

Richmond Gear Ring and Pinion Sets 49-0278-1 GM 8.5/8.6 in. 3.42 Gears Gear, Pinion, 3.42:1 Ratio, GM, in., 10-Bolt, 3 Series, Set

Description

Part Type

Specifications

Reference Information

Compatibility

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