Replace undersized drive

Before you start

• Verify the drive is actually too short and not simply installed too high or incompletely seated.
• Support and unload the joint before removing the drive.
• Measure the full side lock and approved end treatment.

Lay it out

1. Cut the replacement long enough to engage the complete side seam and permit the required secured ends.
2. Check that the side lock itself is straight and usable.

Set and support it

1. Clamp the side edges together so removing the old drive does not open the joint.
2. Keep the top and bottom S-cleats fully engaged.

Make the connection

1. 1

   Remove the short drive without tearing the side hems.

2. 2

   Straighten minor lock distortion.

3. 3

   Cut and form a correct replacement drive.

4. 4

   Start it square and seat it for the full side length.

5. 5

   Secure the ends, deburr, and restore the seal.

6. 6

   Release the clamp and inspect the whole joint.