So I have searched here and over on Crownvic.net with regards to the independent front suspension on these cars. Just for reference I am putting the IFS out of a 2007 PI car under my 70 F100 so while I have it out of the car I am going to go through it and get it right before it goes under the truck. So with some help from here and internet searches I now understand the geometry of this IFS and how to set it up correctly under the truck.
I am going to replace the upper control arms with new FoMoCo units (on their way) but the FoMoCo lower control arm is ridiculously priced and what I am finding parts wise is that the front bushing on the LCA is a non-serviceable part so if it is shot you replace the whole control arm. I am also finding out that other than a FoMoCo replacement there are very mixed opinions on the aftermarket units. Used to be that the MOOG, Raybestos, and TRW parts were good but now the only one you can get is the lower line MOOG which does not particularly instill confidence. There are a couple other brands but they are junk in my opinion (Mevotch and the parts houses' brands).
The ball joint and rear bushing are serviceable so I am leaning that route and will just put a FoMoCo ball joint back in with a MOOG PI rear bushing. This all hinges on the front bushing being in good shape. Are there any signs I should be looking for indicating the bushings need replacement?
Both the UCA and LCA on the front suspension are stamped steel so I ordered that for the new UCA's. I would like to stay with the stamped steel lowers but if I have to replace them my only option in a FoMoCo is aluminum so that is how I would go unless convinced otherwise.