I think the full vs semi float had to do with whether or not the truck was optioned with ABS. ABS got full floats.Just an FYI not all FZJ80's were full float. Mid 93 they made the change. My 93 FZJ80 has semi-float drum brakes. Not 100% sure when the cutoff date/month during 93 when the change happened. So while my 93 was built with drum rears, Terry in Va's 93 had disc/full float rears.