Please note.... By the time you get to the bottom of this page, you will be very confused by all the numbers and RPO build codes of these transmissions. No telling what GM changed to make a completely different build code for these transmissions.

Simple thing to remember is the Pontiac Grand Prix GTP has the MN7 98-03 that works extremely well in the Fiero L67/L32 swaps. If you get a transmission of whole engine package from a Buick or Oldsmobile, and it is a L67 from 99-03, you will be getting a 4T65eHD transmission. Ratios are different among the transmissions however. The torque converter is different also.

 

Transmission General Specifications

Name Hydra-matic 4T65-E
RPO Codes M15/MN3/MN7/M76
Production Location Warren, MI
Vehicle Platform (Engine/Transmission) Usage C, H, W, G, U, B
Transaxle Drive Transverse Mounted Front Wheel Drive
1st Gear Ratio 2.921:1
2nd Gear Ratio 1.568:1
3rd Gear Ratio 1.000:1
4th Gear Ratio 0.705:1
Reverse 2.385:1
Torque Converter Size (Diameter of Torque Converter Turbine) 245 mm (M15) 258 mm (MN3/MN7) 245 mm, 258 mm (M76)
Pressure Taps Line Pressure
Transaxle Fluid Type Dexron™ III
Transaxle Fluid Capacity (Approximate) Bottom Pan Removal: 7.0 L (7.4 qts)

Complete Overhaul: 9.5 L (10.0 qts)

Dry: 12.7 L (13.4 qts)
Transaxle Type: 4 Four Forward Gears
Transaxle Type: T Transverse Mount
Transaxle Type: 65 Product Series
Transaxle Type: E Electronic Controls
Chain Ratios (Designates Number of Teeth on the Drive/Driven Sprockets) 35/35 37/33
Final Drive Ratios 2.86, 3.05, 3.29
Overall Final Drive Ratios 2.86, 3.05, 2.93, 3.29
Position Quadrant P, R, N, D, 3, 2, 1 or P, R, N, OD, 2, 1
Case Material Die Cast Aluminum
Transaxle Weight Dry 87.9 kg (194.2 lbs)
Transaxle Weight Wet 97.0 kg (214.4 lbs)
Maximum Trailer Towing Capacity 907 kg (2000 lbs)
Maximum Gross Vehicle Weight (GVW) 2903 kg (6,400 lbs)

Model Build Information M15

Model Build Information (RPO M15) 2004
Transmission Model 4LBB 4LCB 4LDB 4RDB 4RNB 4BCB
Platform W W W W W B, U
Carline B, C, P C C C B B, C, O, P
Engine Displacement 3.8L 3.8L 3.8L 3.4L 3.1L 3.4L
Engine RPO L36 L36 L36 LA1 LG8 LA1
Eng Vin ID K K K E J E
Overall 3.05 3.29 3.29 2.86 3.05 3.29
Sprocket, Drive/Driven 35/35 35/35 35/35 35/35 35/35 35/35
Final Drive Ratio 3.05 3.29 3.29 2.86 3.05 3.29
Final Drive STD STD STD STD STD STD
Output Shaft STD STD STD STD STD STD
Converter Code FLQB FLQB FLQB FDQB FDKB FLQB
Converter K-Factor 163K 163K 163K 180K 180K 163K
Converter Type ECCC ECCC ECCC ECCC ECCC ECCC
IMS YES YES YES YES YES YES
  • HD = Heavy Duty
  • IMS = Internal Mode Switch
  • SSC = Case Aluminum Structural Side Cover Pan
  • STD = Standard
  • VSS = Vehicle Speed Sensor
  • K-factor = Torque converter numeric rating - combines stall speed and torque multiplication ratings

This table does not identify all unique build items and this table may be subject to change.

Model Build Information M76

Model Build Information (RPO M76) 2004
Transmission Model 4VCB 4CXB
Platform B B, U
Carline B C, B, P, O
Engine Displacement 3.6L 3.4L
Engine RPO LY7 LA1
Eng Vin ID 7 E
Overall 3.29 3.29
Sprocket, Drive/Driven 35/35 35/35
Final Drive Ratio 3.29 3.29
Final Drive AWD AWD
Output Shaft STD STD
Converter Code -- FLQB
Converter K-Factor RI15 163K
Converter Type ECCC ECCC
IMS YES YES
  • HD = Heavy Duty
  • IMS = Internal Mode Switch
  • SSC = Case Aluminum Structural Side Cover Pan
  • STD = Standard
  • VSS = Vehicle Speed Sensor
  • K-factor = Torque converter numeric rating - combines stall speed and torque multiplication ratings

This table does not identify all unique build items and this table may be subject to change.

Model Build Information MN3

Model Build Information (RPO MN3) 2004
Transmission Model 4FFB 4PAB 4PBB
Platform C H H
Carline B B,P B,P
Engine Displacement 3.8L 3.8L 3.8L
Engine RPO L36 L36 L36
Eng Vin ID K K K
Overall 3.05 2.86 3.05
Sprocket, Drive/Driven 35/35 35/35 35/35
Final Drive Ratio 3.05 2.86 3.05
Final Drive STD STD STD
Output Shaft STD STD STD
Converter Code JSFM JSFM JZFM
Converter K-Factor 133K 133K RI15
Converter Type ECCC ECCC ECCC
IMS YES YES YES
  • HD = Heavy Duty
  • IMS = Internal Mode Switch
  • SSC = Case Aluminum Structural Side Cover Pan
  • STD = Standard
  • VSS = Vehicle Speed Sensor
  • K-factor = Torque converter numeric rating - combines stall speed and torque multiplication ratings

This table does not identify all unique build items and this table may be subject to change.

Model Build Information MN7 (perfered transmission for FIERO swaps)

Model Build Information (RPO MN7) 2004 Grand Prix

P = Pontiac

NOTE: 4CBB is the FR9 with TAP shift control features.

4CAB is the most popular being the 4T65eHD transmission
Transmission Model 4CAB 4CBB 4CHB 4FCB
Platform W W H C
Carline C, P P P B
Engine Displacement 3.8L 3.8L 3.8L 3.8L
Engine RPO L67 L32 L67 L67
Eng Vin ID 1 4 1 1
Overall 2.93 3.29 2.93 2.93
Sprocket, Drive/Driven 37/33 35/35 37/33 37/33
Final Drive Ratio 3.29 3.29 3.29 3.29
Final Drive HD HD HD HD
Output Shaft LONG LONG LONG LONG
Converter Code -- -- JZFM JSFM
Converter K-Factor RI15 RI15 RI15 133K
Converter Type ECCC ECCC ECCC ECCC
IMS YES YES YES YES
  • HD = Heavy Duty
  • IMS = Internal Mode Switch
  • SSC = Case Aluminum Structural Side Cover Pan
  • STD = Standard
  • VSS = Vehicle Speed Sensor
  • K-factor = Torque converter numeric rating - combines stall speed and torque multiplication ratings

This table does not identify all unique build items and this table may be subject to change.

Model Build Information MN7 (perfered transmission for FIERO swaps)

Model Build Information (RPO MN7) 2002 Grand Prix

Confused yet? This is the info on 2002 Grand Prix GTP
Transmission Model 2CHB 2FCB 2XAB
Platform H C W
Carline P B B,P
Engine Displacement 3.8L 3.8L 3.8L
Engine RPO L67 L67 L67
Eng Vin ID 1 1 1
Overall 2.93 2.93 2.93
Sprocket, Drive/Driven 37/33 37/33 37/33
Final Drive Ratio 3.29 3.29 3.29
Final Drive HD HD HD
Output Shaft LONG LONG LONG
Converter Code JZFM JSFM JTFM
Converter K-Factor RI15 133K 155K
Converter Type ECCC ECCC ECCC
IMS YES YES NO
  • HD = Heavy Duty
  • IMS = Internal Mode Switch
  • SSC = Case Aluminum Structural Side Cover Pan
  • STD = Standard
  • VSS = Vehicle Speed Sensor
  • K-factor = Torque converter numeric rating (combines stall speed and torque multiplication ratings)

This table does not identify all unique build items and this table may be subject to change.

Model Build Information RPO MN7 (perfered transmission for FIERO swaps)

Model Build Information (RPO MN7) 1999 Pontiac Grand Prix

Confused yet? This is the 1999 GTP build information
Transmission Model 9FCB 9CMB 9FDB 9XAB
Platform C G H W
Carline B B P B,P
Engine Displacement 3.8L 3.8L 3.8L 3.8L
Engine RPO L67 L67 L67 L67
Eng Vin ID 1 1 1 1
Overall 2.93 2.93 2.93 2.93
Sprocket, Drive/Driven 37/33 37/33 37/33 37/33
Final Drive Ratio 3.29 3.29 3.29 3.29
Final Drive HD HD HD HD
Output Shaft LONG LONG LONG LONG
Converter Code JSFM JSFM JSFM JTFM
Converter K-Factor 133K 133K 133K 155K
Converter Type ECCC ECCC ECCC ECCC
IMS YES NO NO NO
  • HD = Heavy Duty
  • IMS = Internal Mode Switch
  • SSC = Case Aluminum Structural Side Cover Pan
  • STD = Standard
  • VSS = Vehicle Speed Sensor
  • K-factor = Torque converter numeric rating (combines stall speed and torque multiplication ratings)

This table does not identify all unique build items and this table may be subject to change.

Engine and Transmission Usage

Body Type Car Line Engine Fuel System Engine RPO Transmission Transmission RPO
W Grand Prix GT 3.8L V6 SFI L26 4T65-E M15
W Grand Prix GTP 3.8L V6 SFI L32 4T65E-HD MN7

Transmission Identification Information


Object Number: 1214832 Size: SF
 
 
(1) SRTA Tag Location
(2) Transmission ID Location
(3) Hydra-Matic 4T65-E ID Tag
(4) Transmission
(5) Julian Date
(6) Shift Built A = First Shift; B = Second Shift; C = Third Shift
(7) Update Level
(8) Model
(9) Serial Number in Base Code 31
(10) W = Warren Plant
(11) Hydra-Matic 4T65-E
(12) Model
(13) Model Year 4 = 2004
(14) Line Built 1 = Line 1; 2 = Line 2; 3 = Line 3; 4 = Line 4
(15) Serial Number
(16) Julian Date
(17) Calendar Year 4 = 2004
(18) Model
(19) Model Year 4 = 2004
(20) Hydra-Matic 4T65-E SRTA Tag
(21) Control Number
(22) Transmission

Shift Speed

Shift Speed (2004 W-Pontiac 4T65eHD)
  1-2 Shift @ +/- 3 mph Output Shaft Speed 2-3 Shift @ +/- 4 mph Output Shaft Speed 3-4 Shift @ +/- 5 mph Output Shaft Speed 4-3 @ +/- 4 mph Output Shaft Speed 3-2 @ +/- 4 mph Output Shaft Speed 2-1 @ +/- 4 mph Output Shaft Speed 3rd Gear TCC Apply 4th Gear TCC Apply
% of TPS 12 25 50 12 25 50 12 25 50 0 50 0 50 0 50 12 25 12 25
Body Axle                
MN7 Models
4XAB MN7 11 19 33 19 29 65 41 56 97 38 65 13 41 13 12 26 41 39 53
4CBB MN7 12 22 38 21 32 74 46 63 N/A 39 58 18 39 14 14 29 46 44 60
4LBB M15 12 18 38 20 32 62 41 60 N/A 33 85 16 44 12 14 26 45 40 59
During the first six months of 2005, GM Powertrain will transition from Dexron III Automatic Transmission Fluid to Dexron VI.

Dexron VI offers the longer-life characteristics in the table.

TIP: Dexron III and Dexron VI can be mixed with no problem.

 

Extended factory fill for life
150K miles for cars
200K miles for trucks
Clutch friction stability
Improved 100%
Clutch durability due to fluid
Improved 120%
Oil film thickness
Increased 20%
Fluid oxidation
Improved 100%
Foam / aeration
Improved 150%
Shear stability
Improved 200%