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Jeep
Jeep has a sectioning procedure for the D-pillar reinforcement. The procedure can be found at: stellantisiop.com
Per the 2012 Liberty repair manual: “D-pillar reinforcement (1) is 1.5 mm low-strength steel and may be sectioned as is the inner body side panel.”
For a short video that shows how to access the Jeep collision repair information, check out the Jeep OEM Information page.