For roof removal on a unibody vehicle, under which post should a step chock be placed?

• A. Under the A-post
• B. Under the B-post
• C. Under the C-post
• D. Under the D-post

Answer: (B)

Stabilizing a unibody vehicle during roof removal relies on bracing the central pillar that carries the roof loads. The B-post, which sits between the front and rear doors, acts as the main structural pillar helping to hold the roof line in place and resist both vertical and lateral movement as the roof is removed. Placing a step chock under the B-post provides a solid anchor to keep the pillars aligned and prevent the vehicle from shifting or the roof from sagging unexpectedly while you work. The A-post and C-post are at the ends of the roof and can be more prone to distortion or interference with doors and glass, and the D-post is at the rear edge and does not offer the central stabilization needed.