Selected Filters

Applications for RMG-GM85373

Richmond Gear EXCel Ring and Pinion Sets GM85373 GM 8.5/8.6 in. 3.73 Gears

RMG-GM85373

4.25 out of 5 stars ( 12 )

Part Number: RMG-GM85373

Estimated Ship Date: Monday 10/19/2026

$163.33

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Applications

Filters

Results Found: 89

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1975

Ending Year:

1975

Engine Type:

Engine Size:

4.1L/250

Engine Family:

CHEVROLET L6 GAS

Axle Location:

Rear

Liter:

4.1

CID:

250

Application Notes:

3.73 Ratio Ring and Pinion for a Front GM 8.5"; Rear GM 8.5" or GM 8.625" Differential

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1975

Ending Year:

1975

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 Front GM 8.5"; Rear GM 8.5" or GM 8.625" Differential

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1975

Ending Year:

1975

Engine Type:

Engine Size:

6.6L/400

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

6.6

CID:

400

Application Notes:

3.73 Ratio Ring and Pinion for a Front GM 8.5"; Rear GM 8.5" or GM 8.625" Differential

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1975

Ending Year:

1976

Engine Type:

Engine Size:

4.8L/292

Engine Family:

CHEVROLET L6 GAS

Axle Location:

Rear

Liter:

4.8

CID:

292

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1975

Ending Year:

1976

Engine Type:

Engine Size:

5.7L/350

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

5.7

CID:

350

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1976

Ending Year:

1976

Engine Type:

Engine Size:

6.6L/400

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

6.6

CID:

400

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1976

Ending Year:

1976

Engine Type:

Engine Size:

7.4L/454

Engine Family:

Chevy big block Mark IV

Axle Location:

Rear

Liter:

7.4

CID:

454

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1976

Ending Year:

1976

Engine Type:

Engine Size:

7.4L/454

Engine Family:

Chevy big block Mark IV

Axle Location:

Rear

Liter:

7.4

CID:

454

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1976

Ending Year:

1978

Engine Type:

Engine Size:

4.1L/250

Engine Family:

CHEVROLET L6 GAS

Axle Location:

Rear

Liter:

4.1

CID:

250

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1976

Ending Year:

1978

Engine Type:

Engine Size:

5.7L/350

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

5.7

CID:

350

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1977

Ending Year:

1978

Engine Type:

Engine Size:

4.1L/250

Engine Family:

CHEVROLET L6 GAS

Axle Location:

Front

Liter:

4.1

CID:

250

Application Notes:

3.73 Ratio Ring and Pinion for a Front GM 8.5"; Rear GM 8.5" or GM 8.625" Differential

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1977

Ending Year:

1978

Engine Type:

Engine Size:

4.1L/250

Engine Family:

CHEVROLET L6 GAS

Axle Location:

Rear

Liter:

4.1

CID:

250

Application Notes:

3.73 Ratio Ring and Pinion for a Front GM 8.5"; Rear GM 8.5" or GM 8.625" Differential; For GM 8.5"/8.625" (10 Bolt); 3.73 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1977

Ending Year:

1978

Engine Type:

Engine Size:

5.0L/305

Engine Family:

Chevy small block Gen I

Axle Location:

Front

Liter:

5.0

CID:

305

Application Notes:

3.73 Ratio Ring and Pinion for a Front GM 8.5"; Rear GM 8.5" or GM 8.625" Differential

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1977

Ending Year:

1978

Engine Type:

Engine Size:

5.0L/305

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

5.0

CID:

305

Application Notes:

3.73 Ratio Ring and Pinion for a Front GM 8.5"; Rear GM 8.5" or GM 8.625" Differential; For GM 8.5"/8.625" (10 Bolt); 3.73 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1977

Ending Year:

1978

Engine Type:

Engine Size:

5.0L/305

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

5.0

CID:

305

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1977

Ending Year:

1978

Engine Type:

Engine Size:

5.7L/350

Engine Family:

Chevy small block Gen I

Axle Location:

Front

Liter:

5.7

CID:

350

Application Notes:

3.73 Ratio Ring and Pinion for a Front GM 8.5"; Rear GM 8.5" or GM 8.625" Differential

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1977

Ending Year:

1978

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 Front GM 8.5"; Rear GM 8.5" or GM 8.625" Differential; For GM 8.5"/8.625" (10 Bolt); 3.73 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1977

Ending Year:

1978

Engine Type:

Engine Size:

6.6L/400

Engine Family:

Chevy small block Gen I

Axle Location:

Front

Liter:

6.6

CID:

400

Application Notes:

3.73 Ratio Ring and Pinion for a Front GM 8.5"; Rear GM 8.5" or GM 8.625" Differential

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1977

Ending Year:

1978

Engine Type:

Engine Size:

6.6L/400

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

6.6

CID:

400

Application Notes:

3.73 Ratio Ring and Pinion for a Front GM 8.5"; Rear GM 8.5" or GM 8.625" Differential; For GM 8.5"/8.625" (10 Bolt); 3.73 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

BASE

Beginning Year:

1977

Ending Year:

1978

Engine Type:

Engine Size:

6.6L/400

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

6.6

CID:

400

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

HIGH SIERRA

Beginning Year:

1975

Ending Year:

1975

Engine Type:

Engine Size:

4.1L/250

Engine Family:

CHEVROLET L6 GAS

Axle Location:

Rear

Liter:

4.1

CID:

250

Application Notes:

3.73 Ratio Ring and Pinion for a Front GM 8.5"; Rear GM 8.5" or GM 8.625" Differential

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

HIGH SIERRA

Beginning Year:

1975

Ending Year:

1975

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 Front GM 8.5"; Rear GM 8.5" or GM 8.625" Differential

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

HIGH SIERRA

Beginning Year:

1975

Ending Year:

1975

Engine Type:

Engine Size:

6.6L/400

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

6.6

CID:

400

Application Notes:

3.73 Ratio Ring and Pinion for a Front GM 8.5"; Rear GM 8.5" or GM 8.625" Differential

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

HIGH SIERRA

Beginning Year:

1975

Ending Year:

1976

Engine Type:

Engine Size:

4.8L/292

Engine Family:

CHEVROLET L6 GAS

Axle Location:

Rear

Liter:

4.8

CID:

292

Engine VIN Code:

Region:

USA

Make:

GMC

Model:

K15

Submodel:

HIGH SIERRA

Beginning Year:

1975

Ending Year:

1976

Engine Type:

Engine Size:

5.7L/350

Engine Family:

Chevy small block Gen I

Axle Location:

Rear

Liter:

5.7

CID:

350

Engine VIN Code:

Region:

USA

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