Model Build Information. Buick Century 1997

For 1990-2009 cars only

Makes 🢒 Buick 🢒 1997 🢒 Century 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T60-E 🢒 Model Build Information

Table A
Transmission Model	6ACW	6AFW	6ASW	6HBW	6BSW
Vehicle Series	C,H	W	C,H	W	N
Engine Displacement	3.8l	3.1L	3.8L	3.8L	3.1L
Engine RPO Code	L36	L82	L36	L36	L82
Engine VIN Code	K	M	K	K	M
Overall Axle Ratio	3.06	3.33	2.84	3.06	2.93
Final Drive Ratio	3.06	3.33	2.84	3.06	3.29
Drive/Driven Sprocket Teeth	35/35	35/35	35/35	35/35	37/33
VSS Rotor Teeth	30	30	30	30	30
Final Drive Assembly	STD	STD	STD	STD	FP
Output Shaft	STD	STD	STD	STD	STD
Torque Converter K-factor	163	180	122	163	140
Converter Clutch	TCC	TCC	TCC	TCC	TCC
Case Side Cover Pan	STEEL	SSC	STEEL	SSC	SSC
SSC Mount Bolt Pattern	N/A	4 BOLT	N/A	4 BOLT	6 BOLT
Transmission Vent Assembly	CAP	CAP	CAP	CAP	TUBE
Temperature Sensor	391	391	391	391	391
1-2 Accumulator Valve (Primary)	STD	INVERT	STD	STD	STD
1-2 Accumulator Piston	136B	136C	136B	136B	136A
1-2 Accumulator Spring(s)	139A,D	139A,C	139A,D	139A,D	139A
2-3 Accumulator Piston	136A	136A	136A	136A	136A
2-3 Accumulator Spring(s)	138A,B	138A,B	138A,B	138A,B	138A,B
3-4 Accumulator Spring(s)	423,4,5	423,4	423,4,5	423,4,5	423,4
Notes: FP = Fine Pitch HD = Heavy Duty N/A = Not Available SSC = Case Aluminum Structural Side Cover Pan STD = Standard STEEL = Stamped Steel Side Cover Pan VSS = Vehicle Speed Sensor K-factor = Torque converter numeric rating (combines stall speed and torque multiplication ratings) This chart does not identify all unique build items and this chart may be subject to change.

Table B
Transmission Model	6BXW	6CAW	6CTW	6CUW	6PAW
Vehicle Series	H	G	G	N	A
Engine Displacement	3.8L	3.8L	3.8L	2.4L	3.1L
Engine RPO Code	L36	L36	L67	LD9	L82
Engine VIN Code	K	K	1	T	M
Overall Axle Ratio	3.06	3.05	2.93	3.42	2.97
Final Drive Ratio	3.06	3.05	3.29	3.05	3.33
Drive/Driven Sprocket Teeth	35/35	35/35	37/33	33/37	37/33
VSS Rotor Teeth	30	30	30	30	30
Final Drive Assembly	STD	FP	FP,HD	FP	STD
Output Shaft	STD	STD	LONG	STD	STD
Torque Converter K-factor	163	163	163	203	140
Converter Clutch	TCC	TCC	TCC	TCC	TCC
Case Side Cover Pan	STEEL	SSC	SSC	SSC	STEEL
SSC Mount Bolt Pattern	N/A	6 BOLT	6 BOLT	6 BOLT	N/A
Transmission Vent Assembly	CAP	CAP	CAP	TUBE	CAP
Temperature Sensor	391	391	450	N/A	391
1-2 Accumulator Valve (Primary)	STD	STD	STD	STD	STD
1-2 Accumulator Piston	136B	136B	136A	136A	136B
1-2 Accumulator Spring(s)	139A,D	139A,D	139A	139A	139A,D
2-3 Accumulator Piston	136A	136A	136A	136A	136A
2-3 Accumulator Spring(s)	138A,B	138A,B	138A,B	138A,B	138A,B
3-4 Accumulator Spring(s)	423,4,5	423,4,5	423,4	423,4	423,4
Notes: FP = Fine Pitch HD = Heavy Duty N/A = Not Available SSC = Case Aluminum Structural Side Cover Pan STD = Standard STEEL = Stamped Steel Side Cover Pan VSS = Vehicle Speed Sensor K-factor = Torque converter numeric rating (combines stall speed and torque multiplication ratings) This chart does not identify all unique build items and this chart may be subject to change.

Table C
Transmission Model	6PBW	6PKW	6WFW	6YLW	6YRW
Vehicle Series	W	U	L	C,H	H
Engine Displacement	3.4L	3.4L	3.1L	3.8L	3.8L
Engine RPO Code	LQ1	LA1	L82	L67	L67
Engine VIN Code	X	E	M	1	1
Overall Axle Ratio	3.43	3.29	2.93	2.93	2.93
Final Drive Ratio	3.06	3.29	3.29	3.29	3.29
Drive/Driven Sprocket Teeth	33/37	35/35	37/33	37/33	37/33
VSS Rotor Teeth	30	30	30	30	30
Final Drive Assembly	STD	FP	FP	FP,HD	FP,HD
Output Shaft	STD	STD	STD	LONG	LONG
Torque Converter K-factor	177	163	140	163	163
Converter Clutch	ECCC	TCC	TCC	TCC	TCC
Case Side Cover Pan	SSC	STEEL	SSC	STEEL	STEEL
SSC Mount Bolt Pattern	4 BOLT	4 BOLT	6 BOLT	N/A	N/A
Transmission Vent Assembly	CAP	CAP	TUBE	CAP	CAP
Temperature Sensor	391	391	391	450	450
1-2 Accumulator Valve (Primary)	STD	STD	STD	STD	STD
1-2 Accumulator Piston	136B	136A	136A	136A	136A
1-2 Accumulator Spring(s)	139A,D	139A	139A	139A	139A
2-3 Accumulator Piston	136A	136A	136A	136A	136A
2-3 Accumulator Spring(s)	138A,B	138A,B	138A,B	138A,B	138A,B
3-4 Accumulator Spring(s)	423,4	423,4	423,4	423,4	423,4
Notes: FP = Fine Pitch HD = Heavy Duty N/A = Not Available SSC = Case Aluminum Structural Side Cover Pan STD = Standard STEEL = Stamped Steel Side Cover Pan VSS = Vehicle Speed Sensor K-factor = Torque converter numeric rating (combines stall speed and torque multiplication ratings) This chart does not identify all unique build items and this chart may be subject to change.

Table A
Transmission Model	7ACW	7AHW	7ASW	7HBW	7BSW
Vehicle Series	C,H	W	C,H	W	N
Engine Displacement	3.8L	3.1L	3.8L	3.8L	3.1L
Engine RPO Code	L36	L82	L36	L36	L82
Engine VIN Code	K	M	K	K	M
Overall Axle Ratio	3.06	3.33	2.84	3.06	2.93
Final Drive Ratio	3.06	3.33	2.84	3.06	3.29
Drive/Driven Sprocket Teeth	35/35	35/35	35/35	35/35	37/33
VSS Rotor Teeth	30	30	30	30	30
Final Drive Assembly	STD	STD	STD	STD	FP
Output Shaft	STD	STD	STD	STD	STD
Torque Converter K-factor	163	180	122	163	140
Converter Clutch	TCC	TCC	TCC	TCC	TCC
Case Side Cover Pan	STEEL	SSC	STEEL	SSC	SSC
SSC Mount Bolt Pattern	N/A	4 BOLT	N/A	4 BOLT	6 BOLT
Transmission Vent Assembly	CAP	CAP	CAP	CAP	TUBE
Temperature Sensor	391	391	391	391	391
1-2 Accumulator Valve (Primary)	STD	INVERT	STD	STD	STD
1-2 Accumulator Piston	136B	136C	136B	136B	136A
1-2 Accumulator Spring(s)	139A,D	139A,C	139A,D	139A,D	139A
2-3 Accumulator Piston	136A	136A	136A	136A	136A
2-3 Accumulator Spring(s)	138A,B	138A,B	138A,B	138A,B	138A,B
3-4 Accumulator Spring(s)	423,4,5	423,4	423,4,5	423,4,5	423,4
Notes: FP = Fine Pitch HD = Heavy Duty N/A = Not Available SSC = Case Aluminum Structural Side Cover Pan STD = Standard STEEL = Stamped Steel Side Cover Pan VSS = Vehicle Speed Sensor K-factor = Torque converter numeric rating (combines stall speed and torque multiplication ratings) This chart does not identify all unique build items and this chart may be subject to change.

Table B
Transmission Model	7BXW	7CUW	7PBW	7YAW
Vehicle Series	H	N	W	U
Engine Displacement	3.8L	2.4L	3.4L	3.4L
Engine RPO Code	L36	LD9	LQ1	LA1
Engine VIN Code	K	T	X	E
Overall Axle Ratio	3.06	3.42	3.43	3.29
Final Drive Ratio	3.06	3.05	3.06	3.29
Drive/Driven Sprocket Teeth	35/35	33/37	33/37	35/35
VSS Rotor Teeth	30	30	30	30
Final Drive Assembly	STD	FP	STD	FP
Output Shaft	STD	STD	STD	STD
Torque Converter K-factor	163	203	177	163
Converter Clutch	TCC	TCC	ECCC	TCC
Case Side Cover Pan	STEEL	SSC	SSC	STEEL
SSC Mount Bolt Pattern	N/A	6 BOLT	4 BOLT	4 BOLT
Transmission Vent Assembly	CAP	TUBE	CAP	CAP
Temperature Sensor	391	N/A	391	391
1-2 Accumulator Valve (Primary)	STD	STD	STD	STD
1-2 Accumulator Piston	136B	136A	136B	136A
1-2 Accumulator Spring(s)	139A,D	139A	139A,D	139A
2-3 Accumulator Piston	136A	136A	136A	136A
2-3 Accumulator Spring(s)	138A,B	138A,B	138A,B	138A,B
3-4 Accumulator Spring(s)	423,4,5	423,4	423,4	423,4
Notes: FP = Fine Pitch HD = Heavy Duty N/A = Not Available SSC = Case Aluminum Structural Side Cover Pan STD = Standard STEEL = Stamped Steel Side Cover Pan VSS = Vehicle Speed Sensor K-factor = Torque converter numeric rating (combines stall speed and torque multiplication ratings) This chart does not identify all unique build items and this chart may be subject to change.