Little Help With 2007 Impala Transmission

[grimmysnr]

I did a drain and fill on my wifes 2007 Chevy Impala with the 3.5l motor 4L60E w/ 33k miles. I bottled some up for analysis but I found some of this "stuff" built up on the bottom of the pan. The one big smear seems to correspond to the outlet of the filter. So I could see why that spot has more build up. The magnet also had some of this stuff on it but nothing crazy. It looks very similar to when I drain my oil from my ATV and it has this greyish material that is mixed in the oil. It is just clutch material.

 

Will according to my GM manuals (which are the actual dealer manuals) non of this material is allowed. However, through google searching almost every forum says that some clutch material is normal on the bottom of the pan. Also the bottom side of filter has a very light coating of this greyish material too. Without further adieu here are some pictures, let me know what you guys think. I went ahead and bottled up a good batch of the old stuff and then put in a new filter and refilled.

 

[jro909]

most likely debris from the clutches...thats what the magnet is for is to collect the bits that wear off

[DwayneJ]

Doesn't look alarming to me. Fluid looks pretty good actually.

 

FWIW that is not a 4L60E, the "L" in there is longitudinal as in lengthwise the way RWD vehicles are setup.