For 1990-2009 cars

1. Remove the sealer.
2. Remove the seat and carpet insulator pad.
3. Drill spot welds from:

3.1. | The front end crossmember

3.2. | The front end assembly - complete

3.3. | The extension wheelhouse engine compartment side

3.4. | The cap assembly-front shock tower and wheelhouse

3.5. | The panel assembly torque box lower and upper

3.6. | The longitudinal rail at floor pan

4. Clean all of the weld seams with a wire brush, prime, and seal all repair areas.
5. Apply a permanent underbody sealant.

Important: Ensure that proper corrosion protection processes are used on all repair areas.

6. Prime with a 2-part catalyzed primer.
7. Apply sealers and corrosion protection materials according to the information in the Body Paint section of this service manual or the paint manufacturer's recommendations.
8. Clean the surface for welding and grind the primer off of the new part at the connecting points. Apply 3M® Weld-Thru Coating P/N 05913, or equivalent, to all areas to be welded.
9. Measure and align the rail assembly engine compartment side. Clamp into place.
10. Use a MIG to plug the weld.