Thread: Terrafirma Rear Diff mounting bolts size

Gday everyone.
I have fitted Terrafirma diff guards, but the 2 bolts that come with the kit, which bolt into the two empty threaded holes on the left side flat boss of a 2012 110 are too small. As a result, I can't fit the rear guard.
Has anyone found the same issue and if so, what size hardened bolts fit the 2 empty holes in the left side of the rear diff housing?
This is probably only relevant to Terrafirma rear diff guards.
Thanks for any info.
Ken

M12 x 25 with a different pitch fitted.
In case any one else has the same issue.