5 transmission variants are listed for the 1991 Chevrolet K2500. Compare attributes, check the tag on your unit, and find the one that fits.
More than one variant is listed. Please verify the tag on your unit before ordering. A VIN shows the part your vehicle was built with, but if it has been replaced, the tag on the unit in your vehicle may be different, and the tag on your unit is what determines fitment.
The attributes below differ between variants. Find the matching value on your unit's tag or in your vehicle's records.
NV3500 Manual Transmission Assembly
| Bell Housing | Integral Bell Housing |
|---|---|
| Brackets Included | No |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm |
| Dyno Tested | Yes |
| Fluid Type | Synchromesh - 12345349 |
| Gaskets Included | No |
| Internal Shift | 3 Rail Internal Shift Mechanism |
| Output Type | 4WD |
| Shifter Included | No |
| Slave Cylinder | External Slave Cylinder |
| Switches Included | No |
| Transmission Family | NV3500 |
| Transmission Speeds | 5-Speed |
None listed.
NV4500 Manual Transmission Assembly
| Bell Housing | Removable Bell Housing |
|---|---|
| Brackets Included | No |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm |
| Case Type | Cast Iron Case |
| Covers | One Switch Top Cover |
| Dyno Tested | Yes |
| Fluid Type | 75W85 GL-4 |
| Gaskets Included | No |
| Output Type | 4WD |
| Shifter Included | No |
| Slave Cylinder | External Slave Cylinder |
| Switches Included | No |
| Transmission Family | NV4500 |
| Transmission Speeds | 5-Speed |
None listed.
700R4 Automatic Transmission Assembly
| Average R&R | 5.5 |
|---|---|
| Bell Housing Included | Yes |
| Cooler Included | No |
| Cooler Replacement Required | No |
| Covers | 6 Bolt Aluminum |
| Extended Warranty | No |
| Fluid Type | PZL-LVMULTI |
| Lockup | Yes |
| Pan Bolts | 16 |
| Premium Labor | Yes |
| ProductVideoURL | https://etereman.wistia.com/medias/v5zwgifdi4 |
| Radiator Included | No |
| Radiator Replacement Required | No |
| Tail Housing | Without |
| Torque Converter Included | Yes |
| Transmission Family | 700R4 |
| Transmission Fluid | 11 |
| Transmission Speeds | 4-Speed |
None listed.
4L80E Automatic Transmission Assembly
| Average R&R | 7.6 |
|---|---|
| Bell Housing | No Bolt Hole at the 12 O'clock Position |
| Bell Housing Included | Yes |
| Conversion Harness Adapter Incuded | Yes |
| Cooler Included | No |
| Cooler Lines | 2 Inch Apart |
| Cooler Replacement Required | No |
| Extended Warranty | No |
| Fluid Type | PZL-LVMULTI |
| Lockup | Yes |
| Neutral Safety Switch | No Bosses on Driver Side |
| Output Type | 4WD |
| Pan Bolts | 17 |
| Premium Labor | Yes |
| ProductVideoURL | https://etereman.wistia.com/medias/f44yzn8cjx |
| Radiator Included | No |
| Radiator Replacement Required | No |
| Shift Type | 3/4 Inch Manual Shift Shaft Size |
| Tail Housing | Without |
| Torque Converter Included | Yes |
| Transmission Family | 4L80E |
| Transmission Fluid | 13 |
| Transmission Speeds | 4-Speed |
None listed.
4L80E Automatic Transmission Assembly
| Average R&R | 7.6 |
|---|---|
| Bell Housing | No Bolt Hole at the 12 O'clock Position |
| Bell Housing Included | Yes |
| Conversion Harness Adapter Incuded | Yes |
| Cooler Included | No |
| Cooler Lines | 2 Inch Apart |
| Cooler Replacement Required | No |
| Extended Warranty | No |
| Fluid Type | PZL-LVMULTI |
| Lockup | Yes |
| Neutral Safety Switch | No Bosses on Driver Side |
| Output Type | 4WD |
| Pan Bolts | 17 |
| Premium Labor | Yes |
| ProductVideoURL | https://etereman.wistia.com/medias/f44yzn8cjx |
| Radiator Included | No |
| Radiator Replacement Required | No |
| Shift Type | 3/4 Inch Manual Shift Shaft Size |
| Tail Housing | Without |
| Torque Converter Included | Yes |
| Transmission Family | 4L80E |
| Transmission Fluid | 13 |
| Transmission Speeds | 4-Speed |
None listed.
5 variants are listed: M150019, M150058, T280701, T281103, T281108. Which one fits depends on the tag on your unit.
Check the tag on your unit before ordering. Please verify the tag on your unit before ordering. A VIN shows the part your vehicle was built with, but if it has been replaced, the tag on the unit in your vehicle may be different, and the tag on your unit is what determines fitment.
The attributes that differ between variants are: Average R&R, Bell Housing, Covers, Fluid Type, Pan Bolts, ProductVideoURL, Transmission Family, Transmission Fluid, Transmission Speeds.
Fitment data from the ETE catalog, our own completed orders, and Hollander interchange data. Numbering systems are listed separately and never merged. When a record lists more than one variant, the tag on your unit is the final word on fitment.