Ask I-CAR
Buick
Buick has a sectioning procedure for the front lower rail. The procedures can be found at www.acdelcotds.com
For short videos that show how to purchase and access the Buick collision repair information, check out the Buick OEM Information page.
A tool that may be used to find out if the vehicle maker has a partial replacement or sectioning procedure is the I-CAR developed OEM Partial Part Replacement Search.