caster caber plate

Is there actually a difference between MM CC plates for 99-04 Mustangs and the 03-04 Cobras? (mmcc9994 vs mmcc0304) I don’t understand why there would be a significant enough difference to warrant two separate part numbered products.

So I'm lowered on H&R ss Springs and got B&M caster camber plates installed this weekend to align the front. When i got my car back from the alignment shop, the right (passenger side) is making a popping noise when i turn the steering wheel. Its like if the strut doesn't turn freely or the...