[Palf70Step]

Now for the sheetmetal part.
First thing you will need to do is cut/grind off the lip where the steps hung on from the newer bed (pic 1)

Rather that fabricate a piece from new flat new metal, I checked the original besides closer and found I could cut off the lower portion and be able to use it as my extension. (pic 2)

Remember, measure alot before you cut!!! I goofed when I cut the old bed, so I had to add about a 1/2" spacer. The top of bed to the step mount should be 22 1/8". I cut and welded in a filler piece of 18 gauge plate steel. It not gave me the extra 1/2" I needed, but by being a backing it added some strength to the area. Go SLOW and space out your welds. You don't want to warp it.

Remember I am not a good welder. I spent about a day for each bed side.