Vehicular base frame (7)
I believe the answer is:
chassis
(Other definitions for chassis that I've seen before include "basic structure" , "an estate may be built on it" , "Support" , "Body frame" , "vessel's structural framework" .)
I believe the answer is:
chassis
(Other definitions for chassis that I've seen before include "basic structure" , "an estate may be built on it" , "Support" , "Body frame" , "vessel's structural framework" .)