94-04 is SN95 (though some call the 99-04 the New Edge years), so yes, you have SN-95 spindles. However, they are not the preferred 94-95 spindles, which keep the same front track as the earlier spindles while adding the divorced rotor/sealed hub bearing and five lug fitment.
The Mustang lower control arms will work, but if you want to run the 9-inch wide 17-inch front wheels you'll need the tubular lower control arms (FFR or otherwise).
The spindles are about 3/8" wider than the 1994/1995 years. Depends on what backspacing you will use.
Work fine for me with 18x8.5" with a 6.18" back space. 1.75 neg camber too. I'm running the 1996 width rear, same as '98, (ABS) with 18x9.5" 6.81 back space for reference. MKII with the narrower rear fenders. You can opt for more backspace with 2005 and up Mustang wheels.
331, RPM intake, TW heads, TF STG II cam, 3:55, powerjection III, 3550 trans, NT-03M Enkei 18x8.5 & 9.5, Kumho XS 245-40 \ 275-35, 3-link, Fast Freddies PS, ABS
I'll share this for what its worth since I found it very helpful during my build as it helped with all kinds of questions I had, go to google and type site:ffcars.com sn95 spindles or anything else you want info about like bumpsteer, ackerman, driveshaft angle etc. It was for me a great find and worked a bit better then seaching each forum site. Lots of info here.
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