4T65-E Valve Body Identification
Part No. Chart
| Part No. | Make | Years | EPC Solenoid | Oil Pump Shaft Sleeve |
|---|---|---|---|---|
| GM035 | GM | '97-'02 | Holley | Yes |
| GM037 | GM | '03-Later | Bosch | No |
| GM039 (Warranty Only) | Volvo | '97-'01 | Holley | Yes |
| GM040 (Warranty Only) | Volvo & GM Tap Shifts | '03-Later | Bosch | No |
Make Identification
The difference between the GM and Volvo versions can be identified by looking at the corner of the valve body. If cut-off it is a GM. If it is a 90° corner, it is a Volvo or GM Tap Shift. See below for examples.
Visual Identification
| GM035 | GM037 |
|---|---|
 |  |
| GM039 (Warranty Only) | GM040 (Warranty Only) |
 |  |
Related Parts
While Sonnax makes every effort to ensure the accuracy of technical articles at time of publication, we assume no liability for inaccuracies or for information which may become outdated or obsolete over time.