Transmission General Specifications Unit Repair
Specification | Specification | |
|---|---|---|
Metric | English | |
Direct Clutch Piston Travel Specification | 1.27-4.369 mm | 0.050-0.172 in |
Intermediate Clutch Piston Travel Specification | 1.02-2.72 mm | 0.040-0.107 in |
Forward Clutch Piston Travel Specification | 1.27-4.369 mm | 0.050-0.172 in |
Overrun Clutch Piston Travel Specification | 0.838-2.38 mm | 0.033-0.094 in |
Fourth Clutch Piston Travel Specification | 1.016-2.540 mm | 0.040-0.100 in |
Low and Reverse Band Servo Piston Pin Specification Chart
Refer to the chart in order to determine the correct low and reverse band servo pin length to use. A, B and C on the chart refer to markings on the J 21370-10 Band Apply Pin Gauge. Numbers 1-7 match the correct piston pin length to the J 21370-10 land indicated by the low and reverse band servo pin inspection procedure.
Pin Length | Pin Identification | |
|---|---|---|
mm | inch | |
83.82-83.97 | 3.300-3.306 | 1 |
84.53-84.68 | 3.328-3.334 | 2 |
85.24-85.39 | 3.356-3.362 | 3 |
85.95-86.10 | 3.384-3.390 | 4 |
86.66-87.53 | 3.412-3.446 | 5 |
87.38-87.53 | 3.440-3.446 | 6 |
88.09-88.24 | 3.468-3.474 | 7 |
Transmission General Specifications 4L80-E
Name | Hydra-matic 4L80-E |
|---|---|
RPO Codes | MT1 |
Production Location | Ypsilanti, MI |
Vehicle Platform (Engine/Transmission) Usage | C/K, C/K 800, G, P32/42 |
Transmission Drive | Longitudinally Mounted Rear Wheel Drive |
1st Gear Ratio | 2.482:1 |
2nd Gear Ratio | 1.482:1 |
3rd Gear Ratio | 1.000:1 |
4th Gear Ratio | 0.750:1 |
Reverse | 2.077:1 |
Torque Converter Size (Diameter of Torque Converter Turbine) | 310 mm |
Pressure Taps | Line Pressure |
Transmission Fluid Type | DEXRON® III |
Transmission Fluid Capacity (Approximate) | Bottom Pan Removal: 7.3L (7.7 qts) Dry: 12.8L (13.5 qts) |
Transmission Type: 4 | Four Forward Gears |
Transmission Type: L | Longitudinal Mount |
Transmission Type: 80 | Product Series |
Transmission Type: E | Electronic Controls |
Position Quadrant | P, R, N, Overdrive, D, 2, 1 |
Case Material | Die Cast Aluminum |
Transmission Weight Dry | 107 kg (236 lbs) |
Transmission Weight Wet | 118 kg (260 lbs) |
Maximum Trailer Towing Capacity | 9,525 kg (21,000 lbs) |
Maximum Gross Vehicle Weight (GVW) | 7,258 kg (16,000 lbs) |
