Question about Kennedy Meadows in Southern Sierra

There is still a lot of snow at the higher elevations in the Sierra, but I think it may have largely melted off in the Kennedy Meadows area. (This is the KM area near Pearsonville in the southern Sierra, not the one near Sonora Pass.) I know the road in and out is tough, but I think I can handle it, slowly and carefully, both up and down. We have never been up there, even though it is much closer to home than the northeastern part of the Sierra, where we often go.

My real question is this: although I very strongly support the idea that folks should be free to ride ATVs and motorcycles on forest roads, I don't really want to be around motorized vehicles when I am hiking and camping -- I like silence. The impression I get from various reports on that part of the Sierra is that there is a lot of off-road vehicle activity. Is it possible to find peace and quiet up in that area, or should I look elsewhere? Are different parts of that zone (maybe around Sherman Pass) quieter than other parts?

Assuming that there is not too much motorized action up there, can you recommend some good hiking trails? My research has not turned up much -- the guidebooks don't focus on that part of the Sierra at all.

Thanks in advance for your advice!