Applications for MGR-G888390

Motive Gear Performance Ring and Pinion Sets G888390 GM 8.875 in. (12-bolt) passenger car 3.90 Gears

Motive Gear Performance Ring and Pinion Sets G888390 GM 8.875 in. (12-bolt) passenger car 3.90 Gears

MGR-G888390

4.5 out of 5 stars ( 2 )

Part Number: MGR-G888390

Estimated Ship Date from Texas: Monday 10/19/2026

$309.99

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Results Found: 381

Make:
PONTIAC
Model:
FIREBIRD
Submodel:
326
Beginning Year:
1967
Ending Year:
1967
Engine Type:
V8
Engine Size:
5.3L/326
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
5.3
CID:
326
CC:
5343
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
326
Beginning Year:
1967
Ending Year:
1967
Engine Type:
V8
Engine Size:
5.3L/326
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
5.3
CID:
326
CC:
5343
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
326
Beginning Year:
1967
Ending Year:
1967
Engine Type:
V8
Engine Size:
5.3L/326
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
5.3
CID:
326
CC:
5343
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
326
Beginning Year:
1967
Ending Year:
1967
Engine Type:
V8
Engine Size:
5.3L/326
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
5.3
CID:
326
CC:
5343
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
326
Beginning Year:
1967
Ending Year:
1967
Engine Type:
V8
Engine Size:
5.3L/326
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
5.3
CID:
326
CC:
5343
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
326
Beginning Year:
1967
Ending Year:
1967
Engine Type:
V8
Engine Size:
5.3L/326
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
5.3
CID:
326
CC:
5343
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
326
Beginning Year:
1967
Ending Year:
1967
Engine Type:
V8
Engine Size:
5.3L/326
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
5.3
CID:
326
CC:
5343
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
326
Beginning Year:
1967
Ending Year:
1967
Engine Type:
V8
Engine Size:
5.3L/326
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
5.3
CID:
326
CC:
5343
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
350
Beginning Year:
1968
Ending Year:
1968
Engine Type:
V8
Engine Size:
5.7L/350
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
5.7
CID:
350
CC:
5733
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
350
Beginning Year:
1968
Ending Year:
1968
Engine Type:
V8
Engine Size:
5.7L/350
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
5.7
CID:
350
CC:
5733
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
350
Beginning Year:
1968
Ending Year:
1968
Engine Type:
V8
Engine Size:
5.7L/350
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
5.7
CID:
350
CC:
5733
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
350
Beginning Year:
1968
Ending Year:
1968
Engine Type:
V8
Engine Size:
5.7L/350
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
5.7
CID:
350
CC:
5733
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
350
Beginning Year:
1968
Ending Year:
1968
Engine Type:
V8
Engine Size:
5.7L/350
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
5.7
CID:
350
CC:
5733
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
350
Beginning Year:
1969
Ending Year:
1969
Engine Type:
V8
Engine Size:
5.7L/350
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
5.7
CID:
350
CC:
5733
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
350 HO
Beginning Year:
1969
Ending Year:
1969
Engine Type:
V8
Engine Size:
5.7L/350
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
5.7
CID:
350
CC:
5733
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
400
Beginning Year:
1967
Ending Year:
1968
Engine Type:
V8
Engine Size:
6.6L/400
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
6.6
CID:
400
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
400
Beginning Year:
1969
Ending Year:
1969
Engine Type:
V8
Engine Size:
6.6L/400
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
6.6
CID:
400
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
400
Beginning Year:
1969
Ending Year:
1969
Engine Type:
V8
Engine Size:
6.6L/400
Engine Family:
PONTIAC V8 GAS
Axle Location:
Rear
Liter:
6.6
CID:
400
CC:
6555
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
BASE
Beginning Year:
1967
Ending Year:
1967
Engine Type:
L6
Engine Size:
3.8L/230
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
3.8
CID:
230
CC:
3769
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
BASE
Beginning Year:
1967
Ending Year:
1967
Engine Type:
L6
Engine Size:
3.8L/230
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
3.8
CID:
230
CC:
3769
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
BASE
Beginning Year:
1967
Ending Year:
1967
Engine Type:
L6
Engine Size:
3.8L/230
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
3.8
CID:
230
CC:
3769
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
BASE
Beginning Year:
1967
Ending Year:
1967
Engine Type:
L6
Engine Size:
3.8L/230
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
3.8
CID:
230
CC:
3769
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
BASE
Beginning Year:
1967
Ending Year:
1967
Engine Type:
L6
Engine Size:
3.8L/230
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
3.8
CID:
230
CC:
3769
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
BASE
Beginning Year:
1967
Ending Year:
1967
Engine Type:
L6
Engine Size:
3.8L/230
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
3.8
CID:
230
CC:
3769
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA
Make:
PONTIAC
Model:
FIREBIRD
Submodel:
BASE
Beginning Year:
1967
Ending Year:
1967
Engine Type:
L6
Engine Size:
3.8L/230
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
3.8
CID:
230
CC:
3769
Application Notes:
3.90 Ratio Ring and Pinion for a Rear GM 8.875" Car Differential; GM 12 Bolt; w/3.90 Axle Ratio
Region:
USA