I know what you mean. I have saved all my reciepts and have told my mechanic everything that was done. I don't know if it has anything to do with it but my truck feels a tad rough at idle. The tach does nut fluctuate at all. I'm throwing this out in left field but bad PCM?

[img]http://www.imgur.com/hxlGUJt.gif[/img]
4-speed
3:54 Dana
13.01 @107.93 with street tires (not hooking up)