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I have my 05 apart and as I recall the 05 pistons have 1/2 moons on the skirt and the 06's are more of a "D" is that correct? Any pics would help, I suspect that a "friend" that sold it to me never told me he had it apart before and why would a 05 have 06 pistons in it. I'm callin the dealer with vins. on monday!