JM400 1987-1995 Jeep® YJ Wrangler Converting to Chevy V-8 (small or big block) engines. The factory motor mounts must be removed from the frame to install these mounts. They are indexed to factory holes in the frame so line-up is a breeze. These mounts must be welded to the frame, so they come bare steel, no paint. They are set-up to offset the engine to the passenger side 1 inch, so a T-case with a drivers side front drive shaft must be installed (231 or 241).
