Not even sure what you are asking here... they come as a complete set. No idea why on earth youd think of mixing/matching or that it would be OK.
2000 Mustang GT Steeda #0048 34k miles. 99 Cobra 4V swapped, FTBR IRS swapped, exhaust, tuned by James Gordon.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.