Aaron,
I put a pair of jumpseats in my van that I  installed several years ago.
The van is a weekender.  I put  the mounts on the front seat bases and
attached the seat belts to the  same place as the front belts.  I then bought some
large nuts that would  not fit the round pegs on the front of the
jumpseats.  I put the 4 nuts  in a vise and drilled out the threads.  I then with the
carpet pulled  back put the seats in with the nuts on the pegs and drove to
my local muffler  shop.  I had the welder there who has dune buggys weld
the nuts to the  floor.  I cam home and put a few squrits of spray paint on
the nuts and  cut small holes in the carpet and put the carpet back.  I now
have 2 nice  seats that remove with an easy pull of the release for when I
want more floor  space.  When out the holes in the carpet are hardly
noticeable,   They have been working fine for years and I would recommend this way of
mounting to anyone.  My dad and sister both have westys and would  like one
by the slider.

Pat
in SC near Charlotte NC
86 AW subi 2.5

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