Selected Filters

Applications for RMG-12BT373T

Richmond Gear EXCel Ring and Pinion Sets 12BT373T GM 8.875 in. (12-bolt) truck 3.73 Gears

RMG-12BT373T

4 out of 5 stars ( 8 )

Part Number: RMG-12BT373T

Estimated Ship Date: Monday 10/19/2026

$217.33

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Applications

Filters

Results Found: 1123

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1967

Ending Year:

1967

Engine Type:

Engine Size:

3.8L/230

Engine Family:

CHEVROLET L6 GAS

Axle Location:

Rear

Liter:

3.8

CID:

230

CC:

3769

Application Notes:

3.73 Ratio Ring and Pinion for a Rear GM 8.875" Truck Differential; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1967

Ending Year:

1967

Engine Type:

Engine Size:

4.1L/250

Engine Family:

CHEVROLET L6 GAS

Axle Location:

Rear

Liter:

4.1

CID:

250

CC:

4097

Application Notes:

3.73 Ratio Ring and Pinion for a Rear GM 8.875" Truck Differential; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1967

Ending Year:

1967

Engine Type:

Engine Size:

4.1L/250

Engine Family:

CHEVROLET L6 GAS

Axle Location:

Rear

Liter:

4.1

CID:

250

CC:

4098

Application Notes:

3.73 Ratio Ring and Pinion for a Rear GM 8.875" Truck Differential; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1967

Ending Year:

1967

Engine Type:

Engine Size:

4.6L/283

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

4.6

CID:

283

CC:

4638

Application Notes:

3.73 Ratio Ring and Pinion for a Rear GM 8.875" Truck Differential; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1967

Ending Year:

1968

Engine Type:

Engine Size:

5.7L/351

Engine Family:

GM V6 GAS

Axle Location:

Rear

Liter:

5.7

CID:

351

CC:

5753

Application Notes:

3.73 Ratio Ring and Pinion for a Rear GM 8.875" Truck Differential; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1967

Ending Year:

1968

Engine Type:

Engine Size:

5.7L/351

Engine Family:

GM V6 GAS

Axle Location:

Rear

Liter:

5.7

CID:

351

CC:

5753

Application Notes:

3.73 Ratio Ring and Pinion for a Rear GM 8.875" Truck Differential; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1967

Ending Year:

1968

Engine Type:

Engine Size:

5.7L/351

Engine Family:

GM V6 GAS

Axle Location:

Rear

Liter:

5.7

CID:

351

CC:

5753

Application Notes:

3.73 Ratio Ring and Pinion for a Rear GM 8.875" Truck Differential; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1967

Ending Year:

1968

Engine Type:

Engine Size:

5.7L/351

Engine Family:

GM V6 GAS

Axle Location:

Rear

Liter:

5.7

CID:

351

CC:

5753

Application Notes:

3.73 Ratio Ring and Pinion for a Rear GM 8.875" Truck Differential; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1967

Ending Year:

1968

Engine Type:

Engine Size:

5.3L/327

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

5.3

CID:

327

CC:

5358

Application Notes:

3.73 Ratio Ring and Pinion for a Rear GM 8.875" Truck Differential; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1967

Ending Year:

1969

Engine Type:

Engine Size:

5.0L/305

Engine Family:

GM V6 GAS

Axle Location:

Rear

Liter:

5.0

CID:

305

CC:

5012

Application Notes:

3.73 Ratio Ring and Pinion for a Rear GM 8.875" Truck Differential; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1967

Ending Year:

1969

Engine Type:

Engine Size:

5.0L/305

Engine Family:

GM V6 GAS

Axle Location:

Rear

Liter:

5.0

CID:

305

CC:

5012

Application Notes:

3.73 Ratio Ring and Pinion for a Rear GM 8.875" Truck Differential; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1967

Ending Year:

1969

Engine Type:

Engine Size:

5.0L/305

Engine Family:

GM V6 GAS

Axle Location:

Rear

Liter:

5.0

CID:

305

CC:

5012

Application Notes:

3.73 Ratio Ring and Pinion for a Rear GM 8.875" Truck Differential; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1967

Ending Year:

1971

Engine Type:

Engine Size:

4.8L/292

Engine Family:

CHEVROLET L6 GAS

Axle Location:

Rear

Liter:

4.8

CID:

292

CC:

4801

Application Notes:

3.73 Ratio Ring and Pinion for a Rear GM 8.875" Truck Differential; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1968

Ending Year:

1968

Engine Type:

Engine Size:

5.3L/327

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

5.3

CID:

327

CC:

5358

Application Notes:

Differential Ring and Pinion; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1968

Ending Year:

1969

Engine Type:

Engine Size:

3.8L/230

Engine Family:

CHEVROLET L6 GAS

Axle Location:

Rear

Liter:

3.8

CID:

230

CC:

3769

Application Notes:

Differential Ring and Pinion; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1968

Ending Year:

1969

Engine Type:

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 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1968

Ending Year:

1969

Engine Type:

Engine Size:

5.0L/307

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

5.0

CID:

307

CC:

5031

Application Notes:

Differential Ring and Pinion; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1968

Ending Year:

1969

Engine Type:

Engine Size:

6.5L/396

Engine Family:

Chevy big block Mark IV

Axle Location:

Rear

Liter:

6.5

CID:

396

CC:

6489

Application Notes:

Differential Ring and Pinion; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1968

Ending Year:

1969

Engine Type:

Engine Size:

6.5L/396

Engine Family:

Chevy big block Mark IV

Axle Location:

Rear

Liter:

6.5

CID:

396

CC:

6489

Application Notes:

Differential Ring and Pinion; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1968

Ending Year:

1972

Engine Type:

Engine Size:

4.8L/292

Engine Family:

CHEVROLET L6 GAS

Axle Location:

Rear

Liter:

4.8

CID:

292

CC:

4801

Application Notes:

Differential Ring and Pinion; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1969

Ending Year:

1969

Engine Type:

Engine Size:

5.0L/307

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

5.0

CID:

307

CC:

5031

Application Notes:

3.73 Ratio Ring and Pinion for a Rear GM 8.875" Truck Differential; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1969

Ending Year:

1972

Engine Type:

Engine Size:

5.7L/350

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

5.7

CID:

350

Application Notes:

Differential Ring and Pinion; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1969

Ending Year:

1974

Engine Type:

Engine Size:

5.7L/350

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

5.7

CID:

350

Application Notes:

3.73 Ratio Ring and Pinion for a Rear GM 8.875" Truck Differential; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1970

Ending Year:

1970

Engine Type:

Engine Size:

5.0L/307

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

5.0

CID:

307

CC:

5031

Application Notes:

Differential Ring and Pinion; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

C15/C1500 PICKUP

Submodel:

BASE

Beginning Year:

1970

Ending Year:

1970

Engine Type:

Engine Size:

5.0L/307

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

5.0

CID:

307

CC:

5031

Application Notes:

Differential Ring and Pinion; For GM 8.875" (12 Bolt); 3.73 Ratio; Thick Ring Gear; Requires a 2.76 to 3.42 Ratio Carrier

Engine VIN Code:

Region:

USA

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