1968 Idler Arm Question

Can anyone tell me if the 68' SJ built cars use the same Idler Arm regardless of Engine. i.e. It the J code the same as the S code cars. Does anyone have a pic of an original S code Idler arm if it is different, otherwise just a pic of an original Idler Arm is good. Also, was there a running change on the arms, I have five (5) idler arms, two are the same, the other three are all different. I'm so CONFUSED Thanks. Mike

(also posted on ConcoursMustangs.com)

Mike;
FWIW, my parts book lists the same idler arm '67 thru '70. The only differential listed is P/S versus M/S.

Neil

Lots of after market and service replacement styles. I have 3 or 4 different ones...