Yukon Gear & Axle Ring and Pinion Sets YG GM12T-373 GM 8.875 in. (12-bolt) truck 3.73 Gears

Yukon Gear & Axle Ring and Pinion Sets YG GM12T-373 GM 8.875 in. (12-bolt) truck 3.73 Gears

YGA-24128

5 out of 5 stars ( 6 )

Part Number: YGA-24128

Estimated Ship Date from GA, TX: Monday 10/19/2026

$399.99

Results Found: 97

Make:
GMC
Model:
C15
Submodel:
BASE
Beginning Year:
1975
Ending Year:
1978
Engine Type:
L6
Engine Size:
4.8L/292
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
4.8
CID:
292
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
T
Region:
USA
Make:
GMC
Model:
C15
Submodel:
BASE
Beginning Year:
1976
Ending Year:
1978
Engine Type:
L6
Engine Size:
4.1L/250
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
4.1
CID:
250
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
D
Region:
USA
Make:
GMC
Model:
C15
Submodel:
BASE
Beginning Year:
1976
Ending Year:
1978
Engine Type:
V8
Engine Size:
5.7L/350
Engine Family:
Chevy small block Gen I
Axle Location:
Rear
Liter:
5.7
CID:
350
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
L
Region:
USA
Make:
GMC
Model:
C15
Submodel:
BASE
Beginning Year:
1976
Ending Year:
1978
Engine Type:
V8
Engine Size:
7.4L/454
Engine Family:
Chevy big block Mark IV
Axle Location:
Rear
Liter:
7.4
CID:
454
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
S
Region:
USA
Make:
GMC
Model:
C15
Submodel:
BASE
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Engine Size:
5.0L/305
Engine Family:
Chevy small block Gen I
Axle Location:
Rear
Liter:
5.0
CID:
305
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
U
Region:
USA
Make:
GMC
Model:
C15
Submodel:
HEAVY HALF
Beginning Year:
1977
Ending Year:
1978
Engine Type:
L6
Engine Size:
4.1L/250
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
4.1
CID:
250
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
D
Region:
USA
Make:
GMC
Model:
C15
Submodel:
HEAVY HALF
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Engine Size:
5.7L/350
Engine Family:
Chevy small block Gen I
Axle Location:
Rear
Liter:
5.7
CID:
350
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
L
Region:
USA
Make:
GMC
Model:
C15
Submodel:
HEAVY HALF
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Engine Size:
7.4L/454
Engine Family:
Chevy big block Mark IV
Axle Location:
Rear
Liter:
7.4
CID:
454
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
S
Region:
USA
Make:
GMC
Model:
C15
Submodel:
HIGH SIERRA
Beginning Year:
1975
Ending Year:
1978
Engine Type:
L6
Engine Size:
4.8L/292
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
4.8
CID:
292
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
T
Region:
USA
Make:
GMC
Model:
C15
Submodel:
HIGH SIERRA
Beginning Year:
1976
Ending Year:
1978
Engine Type:
L6
Engine Size:
4.1L/250
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
4.1
CID:
250
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
D
Region:
USA
Make:
GMC
Model:
C15
Submodel:
HIGH SIERRA
Beginning Year:
1976
Ending Year:
1978
Engine Type:
V8
Engine Size:
5.7L/350
Engine Family:
Chevy small block Gen I
Axle Location:
Rear
Liter:
5.7
CID:
350
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
L
Region:
USA
Make:
GMC
Model:
C15
Submodel:
HIGH SIERRA
Beginning Year:
1976
Ending Year:
1978
Engine Type:
V8
Engine Size:
7.4L/454
Engine Family:
Chevy big block Mark IV
Axle Location:
Rear
Liter:
7.4
CID:
454
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
S
Region:
USA
Make:
GMC
Model:
C15
Submodel:
HIGH SIERRA
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Engine Size:
5.0L/305
Engine Family:
Chevy small block Gen I
Axle Location:
Rear
Liter:
5.0
CID:
305
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
U
Region:
USA
Make:
GMC
Model:
C15
Submodel:
INDY HAULER
Beginning Year:
1977
Ending Year:
1977
Engine Type:
L6
Engine Size:
4.1L/250
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
4.1
CID:
250
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
D
Region:
USA
Make:
GMC
Model:
C15
Submodel:
INDY HAULER
Beginning Year:
1977
Ending Year:
1977
Engine Type:
L6
Engine Size:
4.8L/292
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
4.8
CID:
292
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
T
Region:
USA
Make:
GMC
Model:
C15
Submodel:
INDY HAULER
Beginning Year:
1977
Ending Year:
1977
Engine Type:
V8
Engine Size:
5.0L/305
Engine Family:
Chevy small block Gen I
Axle Location:
Rear
Liter:
5.0
CID:
305
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
U
Region:
USA
Make:
GMC
Model:
C15
Submodel:
INDY HAULER
Beginning Year:
1977
Ending Year:
1977
Engine Type:
V8
Engine Size:
5.7L/350
Engine Family:
Chevy small block Gen I
Axle Location:
Rear
Liter:
5.7
CID:
350
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
L
Region:
USA
Make:
GMC
Model:
C15
Submodel:
INDY HAULER
Beginning Year:
1977
Ending Year:
1977
Engine Type:
V8
Engine Size:
7.4L/454
Engine Family:
Chevy big block Mark IV
Axle Location:
Rear
Liter:
7.4
CID:
454
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
S
Region:
USA
Make:
GMC
Model:
C15
Submodel:
SIERRA CLASSIC
Beginning Year:
1975
Ending Year:
1978
Engine Type:
L6
Engine Size:
4.8L/292
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
4.8
CID:
292
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
T
Region:
USA
Make:
GMC
Model:
C15
Submodel:
SIERRA CLASSIC
Beginning Year:
1976
Ending Year:
1978
Engine Type:
L6
Engine Size:
4.1L/250
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
4.1
CID:
250
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
D
Region:
USA
Make:
GMC
Model:
C15
Submodel:
SIERRA CLASSIC
Beginning Year:
1976
Ending Year:
1978
Engine Type:
V8
Engine Size:
5.7L/350
Engine Family:
Chevy small block Gen I
Axle Location:
Rear
Liter:
5.7
CID:
350
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
L
Region:
USA
Make:
GMC
Model:
C15
Submodel:
SIERRA CLASSIC
Beginning Year:
1976
Ending Year:
1978
Engine Type:
V8
Engine Size:
7.4L/454
Engine Family:
Chevy big block Mark IV
Axle Location:
Rear
Liter:
7.4
CID:
454
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
S
Region:
USA
Make:
GMC
Model:
C15
Submodel:
SIERRA CLASSIC
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Engine Size:
5.0L/305
Engine Family:
Chevy small block Gen I
Axle Location:
Rear
Liter:
5.0
CID:
305
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
U
Region:
USA
Make:
GMC
Model:
C15
Submodel:
SIERRA GRANDE
Beginning Year:
1975
Ending Year:
1978
Engine Type:
L6
Engine Size:
4.8L/292
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
4.8
CID:
292
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
T
Region:
USA
Make:
GMC
Model:
C15
Submodel:
SIERRA GRANDE
Beginning Year:
1976
Ending Year:
1978
Engine Type:
L6
Engine Size:
4.1L/250
Engine Family:
CHEVROLET L6 GAS
Axle Location:
Rear
Liter:
4.1
CID:
250
Application Notes:
RWD; Differential Ring and Pinion; United States (USA); GM 12 Bolt Truck; Ring and Pinion Set; 3.73 Ratio; Fits 4 series 3.73 & Up Carrier
Engine VIN Code:
D
Region:
USA

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