January 01, 2013
GM 4L80-E Case Checkball Locations
Valve Body Xpress
4L80-E, 4L85-E
Remanufactured Valve Body
Part No. GM028
’97–’03
Tech & Install Tips Find a DistributorValve Body to Case Torque Specs in Sequence: 97 in-lb
January 01, 2013
GM 4L80-E Valve Body Identification
Valve Body Xpress
GM 4L80-E Valve Body Identification
Part Number Chart
| Part Number | Description |
|---|---|
| GM026 (Warranty Only) | '91-'92 with Screw-In Temp Sensor |
| GM027 | '92-'96 Temp Sensor in Wire Harness |
| GM028 | '97-'03 |
| GM029 | '04-Later |
Identification
| '91-'96 |
|---|
 |
Look for two small holes on the upper right side of the valve body. The holes do not appear on '97-later units. The screw in the temperature sensor is only used in 1991. All later years use the temperature sensor located in the internal wiring harness. |
| '97-'03 |
 |
| The lube hole moved to the location indicated by the arrow above. |
| '04-Later |
 |
| Have a late-style EPC, which can be identified by the silver canister. |