Rear Window Problem

I see quite a few threads and How-to's regarding window problems, but most of them have to do with the front windows. My Drivers side rear window is dropping slowly on its own whenever I drive. I guess I need a new regulator. My question is, the regulator assemblies for the front and rear windows look completely different. Is there anyone on here who has tried a DIY for a rear regulator? Is it harder than the front?


Thanks