The piece mounted on my 49 comes straight back. I was kindly given the slider piece and the retainer from a member on this forum. Its a homebuilt or reproduction piece but it works fine. Its held up by a J-hook that fits in the round hole in the centre of the rear valance below the tailgate.
Little doubt when I get a flat I will put the slider in the bed until I get home - not on the side of the road. When I installed the tire I found it easier to push the whole unit up with a bottle jack.
