its on revision 9r12

The truck has about 58000 miles on it.

Let me just start out by saying that I own a 2006 duramax and I have had U7186 on if for the last 3 years and I love the thing. Never had one problem or hicup with it.

Well I talked my buddy into getting a u7164 for his 2008 f350 with the 6.4L. Anyway we have been having a problem with the truck ...