I just got 2 mo041 srt oil filters today, and I keep reading about old viper 3/4 inch threads and the newer 22 mm threads on the mo041 oil filter, how do you know if I got the old filter from old stock or the newer filter 22 mm without taking something apart, I just measured the minor diameter of this srt filter (that"s all I can measure) it measures 20.82 mm.Well I just received 6 of the 041s today.