Subframe and Mounting Systems
Front Subframe - The front subframe is bolted to the body and is used to
- aid in structural support.
- provide mounting surfaces for the front suspension control arms.
- provide a mounting point for the engine isolators.
- provide the mounting surface for the steering gear.
- provide the mounting surface for the sway bar.
Rear Subframe - The rear subframe is bolted to the body and is used to
- aid in structural support.
- provide the mounting surface for the rear suspension upper control arms, rear suspension lower control arms and (if equipped) a mounting location for the rear differential.
Underbody misalignment can affect front and rear wheel alignment, the operation of the suspension parts and drivetrain operation. Window glass cracks, door and window opening concerns and air or water leaks at the doors are often caused by incorrectly tightened bolts and body misalignment. For information on underbody dimensions, refer to BODY REPAIRS article.
Subframe - Front
Special Tools Illustration Tool Name Tool Number Adapter for 204-592 204-592/1 Ball Joint Separator 204-592 Powertrain Lift Table 014-00765
Scheme 2
Scheme 3
Scheme 4
Scheme 5
| Item | Part Number | Description |
|---|---|---|
| 1 | W520416 | Front subframe nut (4 required) |
| 2 | 5A552 | Front subframe washer (4 required) |
| 3 | 3C496 | Front subframe support bracket bolt (4 required) |
| 4 | 3B154 | RH front subframe support bracket |
| 5 | 3B155 | LH front subframe support bracket |
| 6 | 5C145 | Front subframe |