I did! I didnt find anything on it.....i didnt see any threads that people talked about changing the back plugs.
__________________ 2002 3400 & 3500 GL "Ruby"-->R.I.P. 163k. My first car. Put 130k on her. 2000 3500 GLS "Robin"-->Intake,Headers,Exhaust,H&R springs,KYB AGX,Sway bars,Strut bars and more