4t60E changes ?'s

[germ]

ok, i need to know if there are any changes in the tranny from 1996 to 1998-1999?

i have a 1996 that i need to get a new tranny for and build up. a local place i can get them from says the 1996 is not the same as a 1998 and that they will not guarantee it. the new tranny will be coming out of the same style car, i.e. monte carlo.

they want $700 for a 1996 w/ 90k on it, and only$150 for a 1998 w/ 15k on it

if there are differences, what are they? wiring? sensors? i am almost 100% sure if there are any changes, thats what it would be.

any help would be great, thanks!

[bszopi]

I remember that there were like 6-7 different versions of the 4T60E in just 94 alone, so I'm sure that there are some differences between the 2 you are looking at.

[4spdz34]

i will look it up on si for u and let u know

[dykz34]

I think that what motor the tranny was connected to also makes a difference. IE: 3.4 DOHC, 3100, 3800, etc. Can you find out that information?

[4spdz34]

yes what motor it is connected to makes a difference. here is alot of stuff long read.
they go in order, so the 1st trans model has all the 1st slot stuff. this should help. thanks to gm service info

THIS IS FOR 1998 MODEL YEAR
Transmission Model
8AHW
8CUW
8YAW
8BSW

Vehicle Series
W
N
U
N

Engine Displacement
3.1L
2.4L
3.4L
3.1L

Engine RPO Code
L82
LD9
LA1
L82

Engine VIN Code
M
T
E
M

Overall Axle Ratio
3.29
2.42
3.29
2.93

Final Drive Ratio
3.29
3.05
3.29
3.29

Drive/Driven Sprocket Teeth
35/35
33/37
35/35
37/33

VSS Rotor Teeth
30
30
30
30

Final Drive Assembly
STD
FP
FP
FP

Output Shaft
STD
STD
STD
STD

Torque Converter K-factor
180
203
163
140

Converter Clutch
TCC
TCC
TCC
TCC

Case Side Cover Pan
SSC
SSC
STEEL
SSC

SSC Mount Bolt Pattern
4 BOLT
6 BOLT
4 BOLT
6 BOLT

Transmission Vent Assembly
CAP
TUBE
CAP
TUBE

Temperature Sensor
391
N/A
391
391

1-2 Accumulator Valve (Primary)
INVERT
STD
STD
STD

1-2 Accumulator Piston
136C
136A
136A
136A

1-2 Accumulator Spring(s)
139A,B
139A
139A
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
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.


THIS IS FOR 1996 BUT SHOULD BE THE SAME FOR ALL 60E'S

Transmission Identification Information




(1) Transmission ID Location
(2) SRTA Tag Location
(3) Hydra-Matic 4T60-E SRTA Tag
(4) Model
(5) Model Year (6 = 1996)
(6) Control Number
(7) Transmission
( Serial Number
(9) Julian Date
(10) Calendar Year (6 = 1996)
(11) Hydra-Matic 4T60-E ID Tag
(12) Model Year (6 = 1996)
(13) Line Built (1 = Line 1; 2 = Line 2; 3 = Line 3; 4 = Line 4)
(14) Transmission
(15) Julian Date
(16) Shift Built (A = First Shift; B = Second Shift; C = Third Shift)
(17) Model
(1 Serial Number in Base Code 31
(19) W = Warren Plant
(20) Hydra-Matic 4T60-E
(21) Model
(22) Transmission Vehicle Identification Number Location



THIS IS FOR 1996 MODEL YEAR

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)

[4spdz34]

that trans identification pic didn't load up, i guess i would have to host it, anyone want to do that for me?

[bszopi]

Email or PM me and I can do it...

[germ]

ok well, since i have no clue about trannies, the car is a 1996 3100 monte carlo (3400 swap done now), w-body, vin M i think. i know my fdr is 3.33 for sure

and the shops tranny they have i know is from a 1998 monte carlo with a 3100. the other info i have no idea about

can someone decipher this info for me since i have no clue what i am looking at

[4spdz34]

that doesn't tell u wiring, but that trans the 1998 has a 3.29 final drive and bolts up the same and evrything. so it should work. i say use your internal trans harness

[germ]

would the 3.29 cause any problems with the spedo or rpm gauge accuracy?

and like i said before, i am tranny stupid

a tranny has an internal wiring harness? so if i use 96's sensors and stuff, and wiring, then the only thing different will be the ratio right? what about the differential? i am going to have that diff turned into an LSD by Intense, would that be any different than using the 96's?

[4spdz34]

no as long as u use the sun gear from the differential u pick it will not matter. u will not notice a differnce between the to diffs. are u getting the trans rebuilt u could go with a 33/37 ratio chain to get a 3.73 final drive. it really wakes up the 3100/3400 u putting a stall in that trans? i can hook u up with one. if your interested pm me

[bszopi]

http://www.60degreev6.com/hlperf/60V6%20Site%20Files/4T60E.htm

If I can get more of those specs, I'd be happy to add them. I plan on putting this up on the site as soon as I get it all worked out (even if I don't have a complete listing).

[4spdz34]

i will get u some more specs and the chart on how to read the model number, all i can remeber right now is that the first digit is the year so 6=96 and 8=98

[bszopi]

Yeah... I wasn't too concerned on how to read the chart. Most people will find a tranny, look at the tag and then look at the chart. If it suits what they want, then they are happy.