I am doing a 4x4 conversion on a 1997 F350 using a Sky RSK. I'll need to track down the spring perch for the back end of the front springs. How many years back can I go and still get the right one? Is the F250 the same? I seem to remember that the springs are different widths, so I suspect not.

 

I don't know the answer, but you might have better luck on the '87 - '96 forum (which includes the '97 HD trucks). There's a lot more traffic on that board and there are a bunch of people that know just about everything about that vintage.