Mounts and Stronger Bolts
a comparison between the stock roll-stop mount bolts and what size bolt actually
fits in the mount. OEM is on the left.
comparison picture. The new bolt is a 3/4"x4" grade 8 bolt.
and filled (not really solid) engine mount. This is the front roll-stop mount.
The engine mounts on the fenders do not need to be filled. Just the lower roll-stops.
bolt fits much tighter. No chance of movement here.
to run the larger bolts, you need to drill larger holes in the engine mount
bracket that is on the block. Be careful to not drill too close to the edge
or you will weaken the bracket and negate this mod. This also worked on my old
1995 Mirage. So I bet it will work for most Mitsubishis.