Does anyone have any ideas how to eliminate the sag on the driver side of my bench seat, without replacing or reupholstering it? My truck is a regular cab, and it has a fold down armrest. If it has to be replaced I would like to put the XLT extended cab seat in my truck. This is the 40 20 40 seat with the fold down armrest/console. Any ideas if that will work or not? Will the bolts line up? Will the armrest fold down properly in a regular cab? I have subs behind the seat.