_______________ may be necessary to ensure solid contact between the cribbing and the vehicle.

• A. Wedges
• B. Spacers
• C. Shims
• D. Pucks

Answer: (A)

When stabilizing a vehicle, you must eliminate gaps and irregularities so the cribbing sits firmly and won’t shift under load. Wedges are used to force the cribbing to seat snugly against the vehicle surface, filling any voids and locking the contact so the load transfers evenly. By driving a wedge at the contact point, you create a stable, high-friction interface that resists movement and prevents rocking or slipping of the cribbing.

Spacers add height, but don’t lock the cribbing into place. Shims are thin adjustments for alignment rather than for forcing solid contact. Pucks are base supports for distributing load on some surfaces but don’t fill gaps to secure the cribbing.