Rails have come up much better than expected after several hours of grinding and wire brushing them clean. Only thing is I counted a 111 rivet holes that will all be needed to be welded up in each rail.
This gives you an idea of the frame bends horizontally before I start modifying it to suit the suspension pickup points of the donor Grands rear and its front sub frame.
Rear height where the coil mount will sit. Will increase this by 100mm/4"
This is the starting height at the front of the frame rail where the front mount of the Grands sub frame will bolt in. Will have to raise this point by bending the front of the rail upwards.
This is the only rust on the whole frame and at the same place on the other rail too. It is where the frame kicks up behind the cab. This happened as some one had added a extra plate to the outside which was only stitched welded on and the gaps let the water and dust in. Rail is bent more than it should be slightly at this point which is fine as will be bending it more anyway.
Thinking of cutting this section out, but leaving the flanges, and adding in a new piece with the extra curve in it that I need, and then bend the flanges to suit it.
Found what looks to be a frame manufactures date too. 9.11.58. Hard to make out the last figure now though as thought I was removing more from the top of it and it disappeared instead.
So parts so far are 50 years apart with the Grand Cherokee donor being made in 2008.
Still hoping to pick up another donor made in 1948 for the other half of the frame and body work too if the guy will ever set a reasonable price.